Best Muriatic Acid For Pools Deals Online in the UK (10 Deals Found)

Last Updated - 04/10/2026 Sort By:

Best Choice
Pro-Kleen

New
Pro-Kleen pH Minus Decreaser Reducer Granules - Reduces The pH Levels of Pools, Spas and Hot Tubs - Easy to Use 1.5 KG
FAST & EFFECTIVE pH REDUCTION – Pro-Kleen pH Reducing Granules quickly lower high pH levels, helping you restore perfect

£11.95
Best Value
No More Mr Nice Guy

New
pH Down pH Minus Decreaser 1.5kg – For Swimming Pools Hot Tubs & Spas – pH Reducer – Lowers pH Levels in Pools & Hot Tub
Effective pH Reduction: Specifically formulated to lower high pH levels and help reduce Total Alkalinity (TA) levels - p

£13.99
Bluewater Pools & Spa Chemicals

New
7kg pH Minus - Bluewater Swimming Pool & Spa Chemicals - PoolShopUK
7Kg pH Minus

£19.49
Zagosa

New
Zagosa 5kg pH Minus & Alkalinity Reducer for Hot Tub Spa & Swimming Pools, pH Minus Decreases your water pH Levels.
Reduce pH Levels - Don't let your spa pool or hot tub fall victim to high pH levels! This 1kg tub of pH Minus quickly an

£18.25
Clearwater

New
Clearwater Water Clarifier for Hot tub Spa and Swimming Water Treatment for Pristine Crystal Clear Water (1L)
Fast Acting Water Clarifier: For use with hot tubs, swimming pools and paddling pools for crystal clear water

£9.99
SpaChem

New
PoolChem - 7kg pH Reducer/Decreaser, pH Minus, pH & Alkalinity Reducer - Use to Lower your Spa, Pool & Hot Tub pH Levels
Made in the UK

£19.70
SpaChem

New
SpaChem 1.5kg Spa pH & Alkalinity Reducer or pH Minus (Lowers Spa, Pool & Hot Tub pH)
Correct pH reading should be 7.4 – 7.6

£10.95
SUDS-ONLINE

New
SUDS-ONLINE pH- minus reducer dry acid For swimming pools, spas, hot tubs down 1KG
pH Minus / pH Reducer - Achieve perfectly balanced water for ultimate skin comfort every time you step into your spa or

£9.95
SUDS-ONLINE

New
SUDS-ONLINE pH- minus reducer dry acid For swimming pools, spas, hot tubs down 500G
pH Minus / pH Reducer - Achieve perfectly balanced water for ultimate skin comfort every time you step into your spa or

£7.95
SpaChem

New
SpaChem 7kg PH & Alkalinity Reducer, pH Minus, Reduce pH readings - Hot Tub Swimming Pool Water Balancer
Correct pH reading should be 7.4 – 7.6

£19.70

10 Muriatic Acid For Pools deals are available from: Amazon stores, starting from £7.95.
The biggest discount we found is 10%% on Pro-Kleen pH Minus Decreaser Reducer Granules - Reduces The pH Levels of Pools, Spas and Hot Tubs - Easy to Use 1.5 KG at Amazon.
The lowest price we found is £7.95 while the highest is £19.70.
Prices for the best Muriatic Acid For Pools deals average at £14.19.
Last updated on October 4, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Muriatic Acid For Pools.