Top 10 Best Hot Tub & Spa Chemicals
of November 2024
1
Best Choice
MAV AquaDoc
MAV AquaDoc
Hot Tub Chemicals Starter Kit - Chlorine Spa Starter Kit Chemicals for Hot Tub - Convenient Hot Tub Starter Kit & ph Control Kit - Effective Chlorine pH Balancer & Inflatable Hot Tub Chemical Kit
10
Exceptional
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2
Best Value
MAV AquaDoc
MAV AquaDoc
Spa Clarifier & Hot Tub Clarifier for Fast Acting Cloudy Water Treatment, The Spa Clarifier Hot Tub Owners Love, Use Our Hot Tub Water Clarifier to Keep Your Spa Clear & Balanced - MAV AquaDoc 16oz
9.9
Exceptional
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3
MAV AquaDoc
MAV AquaDoc
Spa Stain and Scale Control for Hot Tubs, Scale Metal & Stain Control for Hot Tubs, Prevent & Remove Stains in Hot Tubs with Our Hot Tub Water Softener & Spa Descaler Chemical | AquaDoc 32oz
9.8
Exceptional
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4
MAV AquaDoc
MAV AquaDoc
Hot Tub Defoamer & Spa Defoamer - Spa Anti Foam & Hot Tub Anti Foam for HotTub Owners to get the Foam out for Spa & Hot Tub Foam Removal, The Defoamer for Hot Tubs to Keep Spa Foam Down | AquaDoc 16oz
9.7
Exceptional
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5
MAV AquaDoc
MAV AquaDoc
AquaDoc | Spa Chlorine Granules for Hot tub - Spa Sanitizing Granules for Hot Tubs - Recommended Chlorine for spa - Granulated Chlorine for hot tub and spa - Hot Tub Chlorinating Granules - 2lbs
9.6
Exceptional
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6
MAV AquaDoc
MAV AquaDoc
Spa Enzyme for Hot Tubs, Spa Enzyme Water Treatment to Clarify Hot Tub Water. Natural Enzyme Hot Tub Cleaner, Spa Enzyme Cleaner & Natural Hot Tub Chemicals to Make your Spa Perfect - 16oz MAV AquaDoc
9.5
Excellent
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7
MAV AquaDoc
MAV AquaDoc
Hot Tub Filter Cleaner Soak, Pool Filter Cleaner & Pool Cartridge Cleaner - Spa Filter Cleaner Soak & Spa Filter Cleaning Solution for HotTub Cartridges. Easy to Use Filter Degreaser | AquaDoc PT
9.4
Excellent
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8
MAV AquaDoc
MAV AquaDoc
Non-Chlorine Spa Shock for Hot tub - Chlorine Free Tub Treatment & Enhanced to Assist Bromine Suitable Oxidizer Oxidizing by AquaDoc
9.3
Excellent
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9
MAV AquaDoc
MAV AquaDoc
Bromine Booster - Oxidizing Spa Shock to Establish Bromide Reserve - Spa Bromine Hot Tub Chemical & Non-Chlorine Shock for Water Balance with Spa Sodium Bromide for Hottubs - 1lbs Bromide Oxidizer
9.2
Excellent
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10
MAV AquaDoc
MAV AquaDoc
Aquadoc Bromine Hot Tub Starter Kit for Spas, Complete Spa Maintenance Kit with Bromine Tablets & Complete Hot Tub Chemicals Starter Kit with All Spa Chemicals for Hot Tub Kit for pH Water Balance
9.1
Excellent
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11
HTH
HTH
HTH Spa 86116 Defoamer, Spa & Hot Tub Chemical Eliminates Foaming, Softens Water, 16 oz
9.0
Excellent
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12
LeisureQuip
LeisureQuip
Spa and Hot Tub Chemical Balancer Maintenance Kit - Contains SpaGuard Total Alkalinity Increaser, Calcium Increaser, pH Increaser, pH Decreaser, Test Strips, Scum Absorber
8.9
Very Good
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13
LEISURE TIME
LEISURE TIME
Leisure Time 30241A Foam Down Cleanser for Spas and Hot Tubs, 32 fl oz
8.8
Very Good
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14
SpaChoice
SpaChoice
SpaChoice 472-3-3031 Sanitizing Granules Hot Tub Chlorine, 1-Pack
8.7
Very Good
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15
LEISURE TIME
LEISURE TIME
Leisure Time A Bright and Clear Cleanser for Spas and Hot Tubs, 32 fl oz
8.6
Very Good
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16
Hot Tub Pool Log Book Spa Journal: Jacuzzi Maintenance Record Book With Inspection Checklist/Swimming Pool Record Book Keeper & Self Employed ... Bath Supplies/Water Ph Level Notebook Gift
8.5
Good
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17
Hot Tub Serum
Hot Tub Serum
Hot Tub Serum - an EPA Registered Weekly Maintenance Bio-Cleaner/Clarifier/Conditioner/Softener All-in-One 2 Liter (24 Weekly doses)
8.4
Good
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18
Clorox
Clorox
Clorox Spa Water Clarifier, 16-Ounce 59016CSP
8.3
Good
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19
LeisureQuip
LeisureQuip
Clear Spa Hot Tub Balancing Chemical Bundle Includes pH Plus, pH Minus, Alkalinity, Calcium, Test Strips, ScumBoat, and Hot Tub Care Guide E-Book
8.2
Good
View on Amazon
About Hot Tub & Spa Chemicals
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Hot Tub Chemicals Starter Kit - Chlorine Spa Starter Kit Chemicals for Hot Tub - Convenient Hot Tub Starter Kit & ph Control Kit - Effective Chlorine pH Balancer & Inflatable Hot Tub Chemical Kit
Complete Spa Maintenance Kit Take the guesswork out of spa and hot tub care with this premium hot tub water test kit Youll have everything you need to clarify, clean, and test your spa.. High-Quality Hot Tub Products The AquaDoc spa chemical balancer kit includes all the specialty chemicals you need to keep your spa water sparkling. Enjoy beautiful clear blue water at all times. Convenient Startup Bundle Save yourself the trip to the store with this all-inclusive hot tub chemical balancer kit Weve included chlorine granules, pH balancer, cleaner, and more.. Reliable and Effective This hot tub start up kit is a must-have hot tub chemical start up kit for new and experienced spa owners. Our fast-dissolving granular chlorine efficiently keeps your water clean.. Ideal Spa Chlorine Starter Kit In addition to preventing surface corrosion and equipment damage, this chlorine hot tub kit removes dirt, oil, scale buildup, calcium hardness, and annoying foam..
Spa Clarifier & Hot Tub Clarifier for Fast Acting Cloudy Water Treatment, The Spa Clarifier Hot Tub Owners Love, Use Our Hot Tub Water Clarifier to Keep Your Spa Clear & Balanced - MAV AquaDoc 16oz
Eliminate cloudy water, extend your filter life, and keep your pH balanced with our Spa Water Clarifier. Restore hot tub water clarity with the best spa clarifier for hot tubs.. How it works - AquaDoc's spa clarifier attracts micro dirt particles together, almost like a magnet, so that they can be caught by the hot tub filter. This clarifies your hot tub and extends your cartridge filter life.. The Spa Water Clarifier Hot Tub Owners Love - When it comes to Spa Chemicals Clarifier is one of the most important spa chemicals to keep your spa clear of dirt foam. Our Spa clarifier hot tub chemicals clear your water fast so you can enjoy your hot tub.. Easy to use, Fast Acting Spa Water Clarifier - Simply add 2oz of our super water clarifier for every 800 gallons of water while the blower, or hot tub jets, are on, and turn on the filtration system until the water is clean and clear. Use 2 times per week..
Spa Stain and Scale Control for Hot Tubs, Scale Metal & Stain Control for Hot Tubs, Prevent & Remove Stains in Hot Tubs with Our Hot Tub Water Softener & Spa Descaler Chemical | AquaDoc 32oz
Spa Stain And Scale Control For Hot Tubs Control stain and scale deposits with our Professional Grade Spa scale, metal, and stain control product. Spend your leisure time enjoying your hot tub instead of worrying about chalky build-up on spa equipment and surfaces.. Compatible With Bromine Chlorine Our spa stain and scale preventer is compatible with both Bromine Chlorine sanitized spas. Our 100 top quality spa descaler works hard to remove metal of all types. Get metal out of your hot tub, spa or pool water to avoid stains. Remove Calcium, Iron, Copper, and any other metal deposits to keep alkalinity down.. Quick Dissolving Hot Tub Water Softener Aqua Doc delivers Professional Grade spa defense for hard water prevention. Get clear water with our hot tub hardness decreaser for spa, hot tub, or pool. Using our hard water softener for spas is your best defense against metal and scale buildup in your water.. Spa Calcium Decreaser Our hot tub chemicals are your first line of spa defense against calcium. Decrease spa water hardness and reduce stains often created by high spa calcium levels. Reduce alkalinity levels with spa stain scale.. Made In The USA Enjoy your leisure time while Spa chemicals stain and scale that Defends your hot tub against stain, scale and metals with the best spa products that are proudly made in the USA. Prevent stain and scale for hot tubs with our advanced, professional grade formula - leaving your spa, hot tub, or pool with clear, blue water..
Hot Tub Defoamer & Spa Defoamer - Spa Anti Foam & Hot Tub Anti Foam for HotTub Owners to get the Foam out for Spa & Hot Tub Foam Removal, The Defoamer for Hot Tubs to Keep Spa Foam Down | AquaDoc 16oz
Getting more Hot Tub Foam than you bargained for Spa foam is typically caused by soaps, oils, and cosmetics that naturally enter hot tubs during regular use. Spa jets disturb these contaminants which results in more foam.. The Spa Anti Foam that Works Fast - We created a Hot Tub foam eliminator that quickly removes hot tub foam, and keeps the spa foam down with regular maintenance to keep the spa foam out. The best spa defoamer for hot tubs and hot tub bubble remover.. How to Use our Hot Tub Foam Eliminator - Add 1 - 3oz of spa foam eliminator to the foamy hot tub water. Circulate the hot tub antifoam for at least 5 minutes. Repeat this spa foam treatment process weekly as needed to keep the hot tub foam down.. The wrong Spa Foam Remover can make foam worse - The foam reducer hot tub owners love. Using the wrong hot tub chemicals foam can worsen. Not all hot tub anti foam chemicals are created equal. We made a hot tub defoamer spa owners love. Keep the foam away and enjoy a no foam hot tub today.. Made in the USA - Our Anti Foam for Spa is made distributed in the USA. Ordering one of our foam reducer hot tub chemicals helps provide an income for hard working Americans. We deliver top quality products and provide the best customer service to every customer..
AquaDoc | Spa Chlorine Granules for Hot tub - Spa Sanitizing Granules for Hot Tubs - Recommended Chlorine for spa - Granulated Chlorine for hot tub and spa - Hot Tub Chlorinating Granules - 2lbs
Fast Acting Chlorinating Granules for Hot Tub - Clean your water the right way - with AquaDoc's spa chlorine treatment. AquaDoc Chlorinating granules work fast to get clean clear water for hot tubs spas. Use AquaDoc's chlorine for spa and you'll get results.. The Chlorine Spa Owners Love - Whether it's a hot tub or spa, our hot tub chlorinating granules help you treat any build-up. Our granules make it easy to adjust dosing of the chlorine granules, making it easy to use our chlorine for hot tub.. Spa Maintenance friendly Chlorine Granules - With our Chlorinating Concentrate, using a hot tub sanitizer makes spa maintenance easy. Our chlorine granules help you with hot tub foam and are easy to use. The chlorine for hot tubs spa owners can rely on.. The Ultimate Chlorinating Granules for Hot tub and spa - Our spa sanitizing granules specialize in treating your hot tub by maintaining a balance in your hot tub chemistry. Our chlorinated granules for spa are top quality spa chemicals.. Granulated Chlorine Made in the USA - When you choose AquaDoc, you are getting consistent quality. We take pride in manufacturing top quality products. We do the big work, so that you can sprinkle, sit back and relax, to see the AquaDoc magic happen..
Spa Enzyme for Hot Tubs, Spa Enzyme Water Treatment to Clarify Hot Tub Water. Natural Enzyme Hot Tub Cleaner, Spa Enzyme Cleaner & Natural Hot Tub Chemicals to Make your Spa Perfect - 16oz MAV AquaDoc
Hot Tubs are Gross - Hot tubs Naturally collect body oils, suntan lotion, and cosmetics. This makes your hot tub water murky and causes dirty scumlines. That's why we created an easy to use, fast acting Enzyme Cleaner Spa Enzyme Remover.. Our Hot Tub Enzyme Cleaner keeps Hot Tubs Clean - Our powerful natural spa chemicals provide an effective hot tub water treatment that clarifies spa hot tub water. AquaDoc's natural spa enzyme water treatment is a natural enzyme remover that prevents them from coming back.. Spa odor Waterline Control - Avoid scum line buildup get clean hot tub waterlines by using pure enzymes for spa hot tubs. Get the Natural Enzyme Hot Tub Clarifier that works to remove odors and scumline stains.. Easy to Use, Compatible with Bromine, Chlorine, Ozone, and Biguanide Sanitizers - Use 1oz for every 500 gallons daily until scumlines smell are gone. Then prevent future scumlines by using 1oz per 500 gallons of water weekly. Wait 15 minutes after use before entering hot tub.. The Spa Clarifier Alternative - We know that when it comes to your spa, perfect hot tub chemicals are a necessity. MAV AquaDoc does everything we can to provide your hot tub spa with perfect spa chemicals for hot tubs that make spa maintenance easier..
Hot Tub Filter Cleaner Soak, Pool Filter Cleaner & Pool Cartridge Cleaner - Spa Filter Cleaner Soak & Spa Filter Cleaning Solution for HotTub Cartridges. Easy to Use Filter Degreaser | AquaDoc PT
Hot Tub Filter Cleaner Soak your filter in our top quality spa filter cleaning solution to increase the efficiency and lifespan of your spa and hot tub filter. Our product is specifically designed to be a filter cleaner for hot tubs and spas.. Fast Acting, Easy To Use Spa Filter Cleaner We specialize in ensuring your hot tub cartridge filter cleaner is easy to use. Simply soak your filter in our hot tub cleaning solution for 60 minutes and put the clean filter back into its compartment in your spa, hot tub or pool. No need to soak overnight.. Cleans Sand, Cartridge, And DE Filters When you choose an AquaDoc filter cleaner, you're making the right spa choice. Our filter cleaner for hot tubs is specially designed to clean Cartridge Filters, Sand filters, and Diatomaceous Earth filters.. Professional Grade, Made In The USA We provide a professional grade hot tub filter cleaning soak solution for use in both commercial and home spas, hot tubs, and pools. Proudly made in the USA, you can rest easy knowing we use the highest quality materials, and youre helping to provide income to local US citizens.. Enjoy Your Hot Tub Leisure Time Filter Cleaner for Hot Tubs by MAV AquaDoc allows you to enjoy your leisure time. Our spa filter cleaner is designed to remove any headaches associated with cleaning your hot tub, spa, or pool..
Non-Chlorine Spa Shock for Hot tub - Chlorine Free Tub Treatment & Enhanced to Assist Bromine Suitable Oxidizer Oxidizing by AquaDoc
Quick Dissolving Hot Tub Shock - Say goodbye to gross stuff in your hot tub. Enhanced non-chlorine shock gives your Chlorine and Bromine a boost, making your sanitizer last longer. Use our Non-Chlorine shock to make your sanitizer more efficient reduce sanitizer smell.. Non-Chlorine Shock helps reduce chlorine smell - Whether it is hot tub or spa, our product not only saves you from chloramines which can bring that heavy chlorine smell. Hot tub shock treatment is an effective way for spa oxidizing.. Enhanced Chlorine Free Shock Complements Bromine Chlorine - Our Non chlorine shock for hot tub and spa saves you from the shock. It helps reduce the chemical smell of Bromine Chlorine sanitizers.. The Ultimate Oxidizing Shock for Hot Tub - Liquid hot tub shock made with the highest quality standards, our hot tub and spa shock specialize in killing the organics and preventing the chloramine build-up. Super easy to use and no pre-dissolving needed.. All of our Hot Tub Chemicals are Made in the USA - When you choose AquaDoc, you are getting consistent quality. We take pride in making quality products. We do the big work, so that you can sprinkle, sit back and relax, to see the AquaDoc magic happen..
Bromine Booster - Oxidizing Spa Shock to Establish Bromide Reserve - Spa Bromine Hot Tub Chemical & Non-Chlorine Shock for Water Balance with Spa Sodium Bromide for Hottubs - 1lbs Bromide Oxidizer
Establish immediate bromide reserve - Super fast-acting bromine booster and spa shock helps you establish immediate sodium bromide levels in your hot tub to reduce chloramines and bromamines.. Compatible with Spa Bromine and Chlorine Hot Tub Sanitizers - Reduce chloramine smell and achieve fast water balance with our bromine oxidizer. This non chlorine shock hot tub stabilizer works to shock spas with brominating tablets or chlorine granules.. Reduce Hot Tub Chemical Smell - This bromine oxidizing shock removes bromamines and chloramines that cause bad hot tub odors and smelly spa water. This spa stabilizer helps you maintain proper water balance.. Boost Spa Sanitizer Efficiency - Use less spa chemicals and hot tub sanitizers by using our bromine enhanced shock. This hot tub shock treatment helps your water sanitizer work harder so you can save on using bromine tabs or chlorine granules.. Non-Chlorine Hot tub Chemicals Made in the USA - When you choose AquaDoc, you are getting consistent quality. We take pride in making quality products..
Aquadoc Bromine Hot Tub Starter Kit for Spas, Complete Spa Maintenance Kit with Bromine Tablets & Complete Hot Tub Chemicals Starter Kit with All Spa Chemicals for Hot Tub Kit for pH Water Balance
COMPLETE SPA STARTER KIT The Aquadoc hot tub starter chemicals kit comes with everything you need to keep your spa pristine. The hot tub kit includes Bromine Tablets, Bromine Booster, Calcium Increaser, Ph Increaser, Ph Decreaser, Chlorine-Free Shock, Defoamer, Metal Prevent, Floater, and Test Strips.. HOT TUB CHEMICAL STARTER KIT FOR CRYSTAL CLEAR WATER Keep your water clear and balanced with our rapid dissolving bromine hot tub chemicals that remove cloudy water.. HOT TUB MAINTENANCE Prolong the life of your hot tub with the calcium increaser metal prevent. Our calcium hardness increaser helps water balance to reduce corrosion, while the metal prevent helps reduce metal buildup that stains the surface hot tubs.. PH BALANCE KIT Our spa starter kit for hot tubs includes both pH increaser and decreaser so you can easily maintain your hot tub chemistry. Our spa start up kit is a great inflatable hot tub chemical kit.. MADE IN THE USA Aquadoc is a leader in the hot tub and spa industry, producing high-quality spa chemicals made in the USA. Our hot tub water kits provide everything you need to keep your hot tub and spa in pristine condition..
HTH Spa 86116 Defoamer, Spa & Hot Tub Chemical Eliminates Foaming, Softens Water, 16 oz
BENEFIT Relax into worry-free, no foaming soft water with this easy-to-use product. CONDITIONS SPA WATER Efficiently removes foam from spas and hot tubs Ensures a soothing experience. SOFTENTS WATER WITH VITAMIN E HTH Spa Defoamer is formulated to provide a more soothing experience. COMPATIBLE WITH ALL SPAS HTH Spa Defoamer is great for all spas, including bromine, chlorine and biguanide. YOU'RE ALL CLEAR WITH HTH For best results, use HTH Spa Defoamer as part of your regular HTH Spa care routine.
Spa and Hot Tub Chemical Balancer Maintenance Kit - Contains SpaGuard Total Alkalinity Increaser, Calcium Increaser, pH Increaser, pH Decreaser, Test Strips, Scum Absorber
CONTAINS LeisureQuip Scum Absorber, SpaGuard Total Alkalinity Increaser 2lb, SpaGuard Calcium Increaser 12oz, SpaGuard pH Increaser 18oz, SpaGuard pH Down 1lb, BioGuard Test Strips 5-way - 50 stripsbtl.. EFFECTIVE Tested and proven SpaGuard products that are reliable and take the hassle out of your spa or hot tub care. APPROVED SpaGuard spa water balancers provide the right balance for your spa, hot tub or pool, by preventing surface corrosion and equipment damage while balancing water for bather comfort. SUPPORT This kit from LeisureQuip includes a custom 9 point water analysis for YOUR water. Upon request, we will send you a sample bottle and a prepaid envelope by which you can mail us a sample.. Scum absorber shape may vary ScumBoat or ScumBug.
Leisure Time 30241A Foam Down Cleanser for Spas and Hot Tubs, 32 fl oz
BENEFITS Stops and retards foaming in hot tubs and spas. USE As needed to stop unsightly foaming shake well before using add Foam Down directly to the foaming area using approximately 12 oz. at a time. COMPATIBILITY Chlorine, bromine, ozone and biguanide sanitizers. FEATURES Easy to use defoamer begins working immediately. INCLUDES 8 fl oz of hot tub cleaning chemicals. Stops and retards foaming. Compatible with chlorine, bromine, ozone and biguanide sanitizers.
SpaChoice 472-3-3031 Sanitizing Granules Hot Tub Chlorine, 1-Pack
Dissolves Quickly and Completely. Stabilized Spa Chlorine. 56 Available Chlorine. Controls Algae. Downloadable User Guide Available Under Product Information Technical Specifications.
Leisure Time A Bright and Clear Cleanser for Spas and Hot Tubs, 32 fl oz
BENEFITS Helps spa filters perform at peak efficiency prevents scale formation. USE Designed for hot water applications to improve water clarity use weekly for continued protection from scale. COMPATIBILITY Chlorine, bromine, ozone and biguanide sanitizers. FEATURES Water clarifier that remedies clouds in spa water. INCLUDES 8 fl oz of hot tub cleaning chemicals. Helps spa filters perform at peak efficiency. Compatible with chlorine, bromine, ozone and biguanide sanitizers. Utilizes polymer action to remove suspended particles.
Hot Tub Pool Log Book Spa Journal: Jacuzzi Maintenance Record Book With Inspection Checklist/Swimming Pool Record Book Keeper & Self Employed ... Bath Supplies/Water Ph Level Notebook Gift
Hot Tub Serum - an EPA Registered Weekly Maintenance Bio-Cleaner/Clarifier/Conditioner/Softener All-in-One 2 Liter (24 Weekly doses)
Your Hot Tub is part of your family. It deserves to be chemically pampered. The serum is the only weekly maintenance product you will see in this category that has the highly regarded EPA Registration that is NOT designated as a sanitizeroxidizer.. Compare Serum to many other brands that you see as a maintenance product. Hot Tub Serum performs a Powerful Clean Performance. It polishes water to super brilliance reduces sanitizer decay rates for extra sanitizer mileage softens water for the ultimate soaking escape and mitigates organic plumbing jet bio-contamination.. Serum maintenance is added at a weekly rate of one ounce per 100 gallons. The serum will work with chlorine, bromine, ozone, mineral sticks, enzymes, or any other chemical protocols you now use. This Hot Tub Serum will help protect all your hot tub components and increases filtration efficiency. The product is the time-tested weekly maintenance that will save you money over the years and pamper you with the benefits of hot water therapy.. Cut down on costly repairs and replacements with properly cleansed pipes jets and heater..
Clorox Spa Water Clarifier, 16-Ounce 59016CSP
Combines small particles into larger masses for easy filter removal. Makes water crystal clear. Safe for all spa types. No assembly required.
Clear Spa Hot Tub Balancing Chemical Bundle Includes pH Plus, pH Minus, Alkalinity, Calcium, Test Strips, ScumBoat, and Hot Tub Care Guide E-Book
CONTAINS Clear Spa Total Alkalinity Increaser 2lb, Clear Spa Calcium Increaser 2lb, Clear Spa pH Plus 2lb, Clear Spa pH Minus 3lb, BioGuard Test Strips, ScumBoat floating scum absorber, and our Hot Tub Tips ebook and Printable Hot Tub Guide Log Book. EFFECTIVE Tested and proven Clear Spa products are reliable and help take the hassle out of your spa or hot tub care. APPROVED Clear Spa water balancers provide the right balance for your spa, hot tub or pool, by preventing surface corrosion and equipment damage while balancing water for bather comfort. Clear Spa Total Alkalinity Increaser raises total alkalinity level to prevent pH shifts which might cause equipment corrosion.. Clear Spa Calcium Increaser effectively raises the calcium hardness level which helps prevent corrosion of equipment and etching of spa surfaces.. Clear Spa pH Plus gently raises pH levels, improving the effectiveness of sanitizers and spa water comfort.. Clear Spa pH Minus lowers the pH levels improving the effectiveness of sanitizers and spa water comfort.. BioGuard Test Strips 5-way are the simple, easy and effective way to do your daily testing in as little as 15 seconds. Works for both pools and hot tubs Tests for Total Bromine, Free Chlorine, pH, Total Alkalinity, Total Hardness.. ScumBoat floating Scum Absorber. Soaks up lotions, makeup, and all yucky things that make your spa dirty. Your purchase includes our Hot Tub Tips E-book and our Printable Hot Tub Care Log Book that includes chemical dosage charts, hot tub care checklist, troubleshooting guide, and spa maintenance log..