Cya Increaser(18)
Uses item details. Price when purchased online
FROG Jump Start for Hot Tubs - Start-Up Chlorine Shock Removes Organic Contaminants & Establishes Chlorine Level - Hot Tub Set Up & Treatment - 6 Pack From $5.95
Sponsored
From$595
FROG Jump Start for Hot Tubs - Start-Up Chlorine Shock Removes Organic Contaminants & Establishes Chlorine Level - Hot Tub Set Up & Treatment - 6 Pack
4.8 out of 5 stars
In 25+ people's carts, HTH Pool Care Shock Advanced — Granules, 12 Pack (1 lb each) — Pool Shock Treatment for Weekly Pool Sanitizing From $9.99
In 25+ people's carts
Sponsored
From$999
HTH Pool Care Shock Advanced — Granules, 12 Pack (1 lb each) — Pool Shock Treatment for Weekly Pool Sanitizing
4.6 out of 5 stars
In 50+ people's carts, HTH Pool Care Chlorine Shock — Granules, 6 Pack (13.3 oz each) — Pool Shock Treatment for Weekly Use $23.11 29.0 ¢/oz
In 50+ people's carts
Sponsored
$2311
current price $23.1129.0 ¢/oz
HTH Pool Care Chlorine Shock — Granules, 6 Pack (13.3 oz each) — Pool Shock Treatment for Weekly Use
4.6 out of 5 stars
AquaDoc Spa Calcium Hardness Increaser Hot Tub Owners Rely on, Calcium Increaser Spa Hardness Increaser & Calcium Booster for Hot Tubs, Spa Calcium Increaser & Hot Tub water hardener Spa Chemicals $25.99
Sponsored
$2599
current price $25.99AquaDoc Spa Calcium Hardness Increaser Hot Tub Owners Rely on, Calcium Increaser Spa Hardness Increaser & Calcium Booster for Hot Tubs, Spa Calcium Increaser & Hot Tub water hardener Spa Chemicals
4.8 out of 5 stars
Nu-Clo Conditioner Chlorine Stabilizer for Swimming Pools - Cyanuric Acid From $34.95
2 options
Available in additional 2 optionsFrom$3495
Nu-Clo Conditioner Chlorine Stabilizer for Swimming Pools - Cyanuric Acid
4.2 out of 5 stars
Rx Clear Stabilizer and Conditioner Pool Water Balancer Powder for Swimming Pools, 1.75 lbs From $18.99
4 options
Available in additional 4 optionsFrom$1899
Rx Clear Stabilizer and Conditioner Pool Water Balancer Powder for Swimming Pools, 1.75 lbs
4.6 out of 5 stars
Sirona Spa Care Activate Granular ( 2.5 lb ) $28.52
$2852
current price $28.52Sirona Spa Care Activate Granular ( 2.5 lb )
4.8 out of 5 stars
Swimming Pool Stabilizer and Conditioner | Water Balancer | Cyanuric Acid for Swimming Pools | Longer Lasting Sanitation | Helps Reduce Chlorine Loss Due to Sunlight | 25 Pounds $67.99
$6799
current price $67.99Swimming Pool Stabilizer and Conditioner | Water Balancer | Cyanuric Acid for Swimming Pools | Longer Lasting Sanitation | Helps Reduce Chlorine Loss Due to Sunlight | 25 Pounds
PoolRx+ Blue/White Booster 6-Month Swimming Pool Algaecide, 1 Booster Tablet Treats 7.5k-20k Gallons From $38.96
2 options
Available in additional 2 optionsFrom$3896
PoolRx+ Blue/White Booster 6-Month Swimming Pool Algaecide, 1 Booster Tablet Treats 7.5k-20k Gallons
4.3 out of 5 stars
Doheny's Quick Stabilizer | Liquid Stabilizer for Swimming Pools | Instant Protection for Chlorine Against UV Sunlight | Raise CYA | Water Conditioning Agent | Sodium Cyanurate | 1 Gallon $32.99
$3299
current price $32.99Doheny's Quick Stabilizer | Liquid Stabilizer for Swimming Pools | Instant Protection for Chlorine Against UV Sunlight | Raise CYA | Water Conditioning Agent | Sodium Cyanurate | 1 Gallon
5 out of 5 stars
FROG SooTHe Calcium Total Hardness Increaser for Hot Tubs & Swim Spas - 2 lb Bottle with TruDose Measuring Cap for Easy Maintenance & Balancing - 1 Pack From $13.95
Sponsored
From$1395
FROG SooTHe Calcium Total Hardness Increaser for Hot Tubs & Swim Spas - 2 lb Bottle with TruDose Measuring Cap for Easy Maintenance & Balancing - 1 Pack
5 out of 5 stars
HTH Pool Care Calcium Hardness Increaser — Granules, 4 lb — Pool Chemical to Raise Calcium Hardness and Improve Water Balance $9.16 Was $15.99 $2.29/lb
Sponsored
Now$916
current price Now $9.16, Was $15.99$15.99
$2.29/lb
HTH Pool Care Calcium Hardness Increaser — Granules, 4 lb — Pool Chemical to Raise Calcium Hardness and Improve Water Balance
4.6 out of 5 stars
Puri Tech Powder Pool 50lbs Stabilizer Conditioner Cyanuric Acid UV Protection Pool Spa $103.12
$10312
current price $103.12Puri Tech Powder Pool 50lbs Stabilizer Conditioner Cyanuric Acid UV Protection Pool Spa
4.3 out of 5 stars
Natural Chemistry Instant Pool Water Conditioner, 1 Gallon, Pack of 4 From $55.98
2 options
Available in additional 2 optionsFrom$5598
Natural Chemistry Instant Pool Water Conditioner, 1 Gallon, Pack of 4
4 out of 5 stars
Puri Tech Powder Pool Chemicals 50 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas $65.90
Sponsored
$6590
current price $65.90Puri Tech Powder Pool Chemicals 50 lb Calcium Hardness Increaser Plus for Swimming Pools & Spas
4.4 out of 5 stars
HTH Pool Care Alkalinity up — Granules (Form), 5 lb — Pool Alkalinity Increaser to Balance pH and Total Alkalinity $9.73 Was $17.99 $1.95/lb
Sponsored
Now$973
current price Now $9.73, Was $17.99$17.99
$1.95/lb
HTH Pool Care Alkalinity up — Granules (Form), 5 lb — Pool Alkalinity Increaser to Balance pH and Total Alkalinity
4.7 out of 5 stars
HTH Pool Care pH up — Powder, 4 lb — Pool Chemical pH Increaser to Balance Chemistry and Improve Water Clarity $9.52 Was $18.27 $2.38/lb
Sponsored
Now$952
current price Now $9.52, Was $18.27$18.27
$2.38/lb
HTH Pool Care pH up — Powder, 4 lb — Pool Chemical pH Increaser to Balance Chemistry and Improve Water Clarity
4.8 out of 5 stars
Doheny's Super Pool Shock, Pro-Grade 68% Cal-Hypo Granular Chlorine, Quick-Dissolving, Kills Algae & Bacteria, 12 x 1 lb Bags From $39.99
Sponsored
From$3999
Doheny's Super Pool Shock, Pro-Grade 68% Cal-Hypo Granular Chlorine, Quick-Dissolving, Kills Algae & Bacteria, 12 x 1 lb Bags
4.7 out of 5 stars
Other options to consider(90)
Clorox Pool&Spa Calcium Increaser Pool Water Balancers Granules, 4 lb Bag From $12.54
2 options
Available in additional 2 optionsFrom$1254
Clorox Pool&Spa Calcium Increaser Pool Water Balancers Granules, 4 lb Bag
4.6 out of 5 stars
Best seller, Clorox Pool&Spa Chlorine Stabilizer Pool Water Balancers Granules, 4 lbs for pH balancing $19.97 $4.99/lb
Best seller
$1997
current price $19.97$4.99/lb
Clorox Pool&Spa Chlorine Stabilizer Pool Water Balancers Granules, 4 lbs for pH balancing
4.5 out of 5 stars
Doheny's Alkalinity Up Swimming Pool Alkalinity Increaser, Granular Pool Chemical, Raises Total Alkalinity & pH, 10 lb From $23.39
5 options
Available in additional 5 optionsFrom$2339
Doheny's Alkalinity Up Swimming Pool Alkalinity Increaser, Granular Pool Chemical, Raises Total Alkalinity & pH, 10 lb
4.7 out of 5 stars
Natural Chemistry Yellow Out Swimming Pool Stain Remover, 4 lbs From $19.19
3 options
Available in additional 3 optionsFrom$1919
Natural Chemistry Yellow Out Swimming Pool Stain Remover, 4 lbs
4.5 out of 5 stars
In 200+ people's carts, HTH Chlorine Shock — Granules, 13.3 oz — Pool Shock Treatment for Weekly Chlorination
In 200+ people's carts
2 options
Available in additional 2 optionsHTH Chlorine Shock — Granules, 13.3 oz — Pool Shock Treatment for Weekly Chlorination
4.6 out of 5 stars
Bio-Active Cyanuric Acid Reducer From $39.95
2 options
Available in additional 2 optionsFrom$3995
Bio-Active Cyanuric Acid Reducer
3.2 out of 5 stars
Better Water Industries Chlorine Pellets, Calcium Hypochlorite Water Treatment, 21044 $37.27
$3727
current price $37.27Better Water Industries Chlorine Pellets, Calcium Hypochlorite Water Treatment, 21044
4.6 out of 5 stars
In The Swim ClearAway CYA Cyanuric Acid Remover, 1.5 lbs ITS-CYA-R-1.5 $79.99 $53.33/lb
$7999
current price $79.99$53.33/lb
In The Swim ClearAway CYA Cyanuric Acid Remover, 1.5 lbs ITS-CYA-R-1.5
5 out of 5 stars
Doheny's Calcium Plus Hardness Increaser for Swimming Pools, Pro-Grade Granular Calcium Chloride, Prevents Corrosion & Staining, 25 lb From $24.29
3 options
Available in additional 3 optionsFrom$2429
Doheny's Calcium Plus Hardness Increaser for Swimming Pools, Pro-Grade Granular Calcium Chloride, Prevents Corrosion & Staining, 25 lb
4.6 out of 5 stars
Clorox Spa All-in-One Sanitizer and Shock for Spas and Hot Tubs Pool Water Balancers, 32oz for Sanitizing From $26.98
2 options
Available in additional 2 optionsFrom$2698
Clorox Spa All-in-One Sanitizer and Shock for Spas and Hot Tubs Pool Water Balancers, 32oz for Sanitizing
4.7 out of 5 stars
FROG Jump Start for Hot Tubs - Start-Up Chlorine Shock Removes Organic Contaminants & Establishes Chlorine Level - Hot Tub Set Up & Treatment - 1 Pack From $5.95
6 options
Available in additional 6 optionsFrom$595
FROG Jump Start for Hot Tubs - Start-Up Chlorine Shock Removes Organic Contaminants & Establishes Chlorine Level - Hot Tub Set Up & Treatment - 1 Pack
4.8 out of 5 stars
In The Swim pH Increaser for Pools - Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up - 5 Pounds F083B05030AE From $21.49
4 options
Available in additional 4 optionsFrom$2149
In The Swim pH Increaser for Pools - Granular 100% Sodium Carbonate (Soda Ash) to Raise pH Up - 5 Pounds F083B05030AE
4.6 out of 5 stars
Best seller, Clorox Pool&Spa Alkalinity Increaser for Swimming Pools, 5 lb Bag, Granules From $10.94
Best seller
2 options
Available in additional 2 optionsFrom$1094
Clorox Pool&Spa Alkalinity Increaser for Swimming Pools, 5 lb Bag, Granules
4.7 out of 5 stars
Aqua Basics Chlorine Stabilizer (4 LB Pouch) $29.99
$2999
current price $29.99Aqua Basics Chlorine Stabilizer (4 LB Pouch)
Pool Central Maintain Pool Pro Balancer pH Increaser - 5 lbs. $19.99
$1999
current price $19.99Pool Central Maintain Pool Pro Balancer pH Increaser - 5 lbs.
5 lb Pure Sodium Carbonate Dense Soda Ash Na2CO3 pH Adjust Chemical Spa Pool Cleaning Dishwasher From $14.05
6 options
Available in additional 6 optionsFrom$1405
5 lb Pure Sodium Carbonate Dense Soda Ash Na2CO3 pH Adjust Chemical Spa Pool Cleaning Dishwasher
4.4 out of 5 stars
(3 pack) HTH Pool Care Shock Advanced — Granules, 1 lb — Pool Shock Treatment for Weekly Use
(3 pack) HTH Pool Care Shock Advanced — Granules, 1 lb — Pool Shock Treatment for Weekly Use
My Garden Pool Soda Ash - pH Increaser for Crystal-Clear Waters, Laundry Booster, Tie Dye Fixer - Elevate Your Pool and Projects with Sodium Carbonate 1 lbs From $9.99
2 options
Available in additional 2 optionsFrom$999
My Garden Pool Soda Ash - pH Increaser for Crystal-Clear Waters, Laundry Booster, Tie Dye Fixer - Elevate Your Pool and Projects with Sodium Carbonate 1 lbs
3.8 out of 5 stars
Baquacil Oxidizer 84319-CS (4 - 1 Gallon Bottles) $129.99
$12999
current price $129.99Baquacil Oxidizer 84319-CS (4 - 1 Gallon Bottles)
4.8 out of 5 stars
In The Swim 1 Inch Bromine Plus Tablet Sanitizer for Spas, Hot Tubs, or Swimming Pools - Pre-Stabilized, Low Odor, Chlorine Alternative – 3.5 Pounds U138004032AE From $49.99
4 options
Available in additional 4 optionsFrom$4999
In The Swim 1 Inch Bromine Plus Tablet Sanitizer for Spas, Hot Tubs, or Swimming Pools - Pre-Stabilized, Low Odor, Chlorine Alternative – 3.5 Pounds U138004032AE
4.5 out of 5 stars
Champion Pool Shock, 12.5% Commercial Grade Liquid Chlorine, 2 Pack, 1 gal From $39.99
2 options
Available in additional 2 optionsFrom$3999
Champion Pool Shock, 12.5% Commercial Grade Liquid Chlorine, 2 Pack, 1 gal
4.6 out of 5 stars
Ouster Hot Tub 3-in-1 Weekly Care Cleaner, Clarifier, Conditioner Liquid for Pool Maintenance, 8 oz $12.77 $1.60/fl oz
$1277
current price $12.77$1.60/fl oz
Ouster Hot Tub 3-in-1 Weekly Care Cleaner, Clarifier, Conditioner Liquid for Pool Maintenance, 8 oz
4.5 out of 5 stars
Hydria Clear 1" Bromine Tablets for Pools and Spas, 1.5 lbs From $25.92
5 options
Available in additional 5 optionsFrom$2592
Hydria Clear 1" Bromine Tablets for Pools and Spas, 1.5 lbs
4.8 out of 5 stars
Doheny's Super Pool Shock, Pro-Grade 68% Cal-Hypo Granular Chlorine, Quick-Dissolving, Kills Algae & Bacteria, 12 x 1 lb Bags From $39.99
3 options
Available in additional 3 optionsFrom$3999
Doheny's Super Pool Shock, Pro-Grade 68% Cal-Hypo Granular Chlorine, Quick-Dissolving, Kills Algae & Bacteria, 12 x 1 lb Bags
4.7 out of 5 stars
Clorox Easy Liquid Stabilizer Pool Water Balancers for Swimming Pools $31.27 24.4 ¢/fl oz
$3127
current price $31.2724.4 ¢/fl oz
Clorox Easy Liquid Stabilizer Pool Water Balancers for Swimming Pools
4.6 out of 5 stars
Sirona Spa Care Simply Oxidizer 32 oz $22.49 Was $24.99
Now$2249
current price Now $22.49, Was $24.99$24.99
Sirona Spa Care Simply Oxidizer 32 oz
3.6 out of 5 stars
Champion Muriatic Acid - Swimming Pool pH Reducer Balancer - 1 Gallon Jug $44.95
$4495
current price $44.95Champion Muriatic Acid - Swimming Pool pH Reducer Balancer - 1 Gallon Jug
4.7 out of 5 stars
Omega 2 Lb - pH Plus Increaser for Swimming Pools $10.99 $5.36/lb
$1099
current price $10.99$5.36/lb
Omega 2 Lb - pH Plus Increaser for Swimming Pools
FROG SooTHe Calcium Total Hardness Increaser for Hot Tubs & Swim Spas - 2 lb Bottle with TruDose Measuring Cap for Easy Maintenance & Balancing - 1 Pack From $13.95
2 options
Available in additional 2 optionsFrom$1395
FROG SooTHe Calcium Total Hardness Increaser for Hot Tubs & Swim Spas - 2 lb Bottle with TruDose Measuring Cap for Easy Maintenance & Balancing - 1 Pack
5 out of 5 stars
Dura Chlor pH up (Increaser) 5 lb for Swimming Pool $21.91
$2191
current price $21.91Dura Chlor pH up (Increaser) 5 lb for Swimming Pool
Calcium Hardness Increaser $7.99 Was $14.10 38.1 ¢/ea
Now$799
current price Now $7.99, Was $14.10$14.10
38.1 ¢/ea
Calcium Hardness Increaser
4.9 out of 5 stars
Sirona Spa Care Calcium Booster ( 1 qt ) $10.49
$1049
current price $10.49Sirona Spa Care Calcium Booster ( 1 qt )
3 out of 5 stars
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