Pool pH Adjusters

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559 results

pH Plus Increaser 5kg Swimming Pool Chemicals & Spa
Brand new · Bluewater Pool & Spa Chemicals
(44)
£15.95
Free postage
8,157 sold
Bestway Clearwater Chemicals Swimming Pool Spa Hot Tub Chlorine Starter Kits
Brand new · ClearWater
£18.85
Free postage
145 sold
PH Increaser 1KG PH Plus Hot Tub Swimming Pool Spa Water Treatment Blue Sparkle
Brand new · Shatchi
(4)
£9.19
Free postage
556 sold
20g CHLORINE TABLETS 5 IN 1 Multifunction SWIMMING POOL HOT TUB SPA
50 Tab Tubs inc FREE FLOATING DISPENSER
Brand new
£7.89 to £14.99
Free postage
475 sold
AquaSplash 7Kg pH Reducer (pH Minus -)
Brand new
(7)
£12.95
Free postage
357 sold
pH Increaser Granules, pH PLUS 1Kg for Swimming Pools, Hot Tubs & Spas aBalchemy
Brand new
£7.90
(£7.90/kg)
Free postage
79 sold
pH Increaser Granules, pH PLUS 5Kg for Swimming Pools, Hot Tubs & Spas aBalchemy
Brand new
£13.99
(£2.80/kg)
Free postage
41 sold
7kg pH Minus pH Reducer - Swimming Pool & Spa Chemicals
Brand new · Bluewater
(22)
£16.25
Free postage
3,142 sold
50x20g Chlorine Tablets Pool Hot Tub Spa + Dispenser + Testing strips FULL KIT!
24 Hour for Next Day Delivery
Brand new · Premier
(155)
£15.99
Free postage
20,116 sold
CLEARWATER SWIMMING SPA HOT TUB TREATMENT STARTER CHEMICAL KIT
Brand new · ClearWater
(82)
£20.99
(£20.99/Unit)
Free postage
944 sold
SUDS-ONLINE 5KG pH Plus (Increaser) for Swimming Pools, Spas and Hot Tubs
Brand new
(11)
£14.95
Free postage
1,050 sold
Hot Tub PH Increaser PH+
Brand new
£7.50 to £17.99
Free postage
239 sold
Aqua Sparkle Range Hot Tub Chemicals Disinfectant Sanitisers Balancers Cleaners
Brand new · AquaSparkle
(6)
£6.49 to £26.99
Free postage
121 sold
PH MINUS REDUCER DECREASER 1.5KG Hot Tub Chemicals Spa Swimming Pool Water
Brand new
(6)
£10.99
Free postage
353 sold
50 Chlorine Tablets + Dispenser + Testing strips Kit for Hot Tub Spa jacuzzi
Brand new · Premier
(15)
£15.99
Free postage
1,514 sold
Bestway Clearwater Spa Starter Kit Chlorinating Granules, pH Adjuster - CH0018
Brand new · ClearWater
£19.85 to £37.85
Free postage
624 sold
Non-Chlorine Shock Granules Aquasparkle Hot Tub Spa Pool Oxidiser 1kg
Brand new
(51)
£19.99
Free postage
108 sold
Sodium Bisulphate 25KG bag pH Minus Dry Acid Food Grade - CHEAP - FAST DELIVERY
Brand new
£38.00
Free postage
233 sold
Swimming Pool Hot Tub Chemical Water Cleaner Starter Treatment Kit - 500G
Brand new · Suds-Online
(17)
£19.95
Free postage
1,495 sold
PH MINUS 7KG / DRY ACID REDUCER - SWIMMING POOL SPA HOT TUB CHEMICALS SUDS
Brand new
(2)
£15.95
Free postage
725 sold
Hexeal pH PLUS | 1kg Jar | pH + Increaser for Swimming Pools, Spas, Hot Tubs
Brand new
£7.99
(£7.99/kg)
Free postage
673 sold
7KG pH Reducer (pH Minus) for Swimming Pools, Spas and Hot Tubs
Brand new
£15.95
Free postage
118 sold
Hexeal pH PLUS | 5kg Bucket | pH + Increaser for Swimming Pools, Spas, Hot Tubs
Brand new
£14.75
(£2.95/kg)
Free postage
1,051 sold
BESTWAY 1249L Pool Pump FLOWCLEAR Filters + CLEARWATER PH Plus / Minus CHLORINE
New (other) · ClearWater
£44.36
or Best Offer
£5.49 P&P
PoolSan pH Minus pH reducer and alkalinity reducer 400gr for pools & hot tubs
Brand new
£6.99
Free postage
66 sold
Hexeal pH PLUS | 5kg Bottle | pH + Increaser for Swimming Pools, Spas, Hot Tubs
Brand new
£14.75
(£2.95/kg)
Free postage
1,743 sold
pH Minus pH Reducer 1.5KG Hot Tub Chemicals Spa Swimming Pool Water Balancer
Brand new
£13.99
(£9.33/kg)
Free postage
106 sold
NEW! Aquasparkle 1kg Non-Chlorine Shock Granules Hot Tub Spa Swimming Pool
Brand new
(51)
£19.99
Free postage
4,304 sold
Swimming Pool Starter Chemical Chlorine Tablets Treatment Kit for Clear Water
Brand new · Premier
£19.99
Free postage
146 sold
Fi-clor Swimming Pool pH & Alkalinity Reducer (Dry Acid) 7kg
Brand new
£25.95
Free postage
CLEARWATER POOL STARTER KIT WATER TREATMENT SWIMMING HOT TUB CHLORINE ALGAECIDE
Brand new · ClearWater
£320.85
Free postage
Only 1 left.
NEW! Aquasparkle PH+ Up Plus 1Kg Hot Tub Swimming Pool Spa Soda Ash Increase
Brand new · AquaSparkle
(6)
£10.90
Free postage
876 sold
Bestway ClearWater Lay-Z-Spa, Swimming Pool, Spa & Hot Tub Chemicals & Kits
Brand new · ClearWater
(82)
£8.79 to £34.99
Free postage
669 sold
4 x Aquasparkle Spa Fusion Shock Treatment Hot Tub Pool Tubs Spas Oxidiser Lite
Brand new
(35)
£16.73
Free postage
529 sold
Hot Tub PH Decreaser PH-
Brand new
£7.50 to £17.99
Free postage
63 sold
Hexeal pH Adjuster Kit | 1kg pH PLUS & 1.5kg pH MINUS Jar | pH + & -
Brand new
£16.99
(£6.80/kg)
Free postage
PH + Plus Increaser Castle Hot Tubs Swimming Pool Spa 5 Kg
Brand new
(32)
£19.60
Free postage
4,625 sold
5kg pH plus increaser hot tub lay-z spa pools high quality PH+ - CHEAPEST
Brand new
£14.70
Free postage
1,890 sold
Jarder PH Plus PH Increaser Granules for Hot Tubs Pools Spa Water PH Levels 1kg
Brand new
£12.95 to £26.95
Free postage
50 x 20g Chlorine Tablets: HotTub Pool Spa
FREE FLOATING DISPENSER WITH ALL ORDERS
Brand new
£17.99
Free postage
77 sold
Canadian Spa Company Grand Rapids Swimming Pool, Spa & Hot Tub Chemicals Kit
Brand new · Canadian Spa
(8)
£24.95
Free postage
85 sold
ProKleen pH-Reducer Sodium Bisulphate Swimming Pools Hot Tub Spa Water 1.5kg
Brand new
£13.95
(£13.95/kg)
Free postage
20x20g Chlorine Tablets Pool Hot Tub Spa + Dispenser + Testing strips FULL KIT!
Brand new · Premier
(5)
£15.99
Free postage
1,560 sold
500g pH minus decreaser hot tub lay-z spa pools high quality PH -
Brand new
£7.99
Free postage
Clearwater PH Decreaser 1.5kg
Brand new · ClearWater
£9.50
Free postage
36 sold
Blue Horizons Swimming Pool Ph Plus - 5kg
Brand new
£25.95
Free postage
Only 2 left
Happy Hot Tubs PH - Minus for Swimming Pools Hottubs Tub Alkalinity Reducer Down
Brand new
(4)
£13.99 to £81.99
Free postage
85 sold
50x20g Chlorine Tablets for Pools, Hot Tubs, Spas + 20 Testing strips
Brand new · Premier
(8)
£15.99
Free postage
1,133 sold
pH Minus PH decreaser- 250g Decrease pH of Swimming Pool Water Free UK PP
Brand new
£8.99
Free postage
PH - Minus Reducer Down Blue Horizons Hot tub Spa Pool Dry Acid 7kg
Brand new
£23.85
(£3.41/kg)
Free postage
281 sold
Hexeal pH MINUS | 1.5kg Jar | pH - Reducer for Swimming Pools, Spas, Hot Tubs
Brand new
£8.99
(£5.99/kg)
Free postage
110 sold
SUDS ONLINE SWIMMING POOL CHEMICALS- CHLORINE TABLETS GRANULES ALGAECIDE LIQUID
Brand new
£5.36 to £49.46
Free postage
65 sold
ClearWater Lay-Z-Spa Swimming Pool Hot Tub Chemicals Accessories Starter Kits
Brand new · ClearWater
£1.25 to £26.40
Free postage
Clearwater Pool/SPA Starter Kit Chemical Chlorine Granules Water Foam Remover
Brand new
£20.85 to £26.39
Free postage
1KG pH Plus (Increaser) for Swimming Pools, Spas and Hot Tubs
Brand new
£9.49
Free postage
54 sold
Small Dispenser With 5 Ultimate Chlorine Tablets 20g
Brand new
(30)
£9.95
Free postage
ClearWater Swimming Pool and Hot Tub Chemical Starter Kit
New (other) · ClearWater
(82)
£11.85
£5.21 P&P
Clearwater Hot Tub Ph Reducer Ph Minus 700g Each x 2 NOT x 3
New (other) · ClearWater
£8.64
or Best Offer
£2.94 P&P
Hot Tub Starter Chemical Chlorine Tablet Treatment Kit For Spa Pool Clear Water
These are the proper sized tablets
Brand new · Premier
£19.99
Free postage
141 sold
1KG pH+ Plus pH Increaser Chemicals MSPA Hot Tub Swimming Pool Water Treatment
Brand new · Shatchi
(4)
£9.19
Free postage
543 sold

Best selling

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Top-rated

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50x20g Chlorine Tablets Pool Hot Tub Spa Dispenser Testing Strips Full Kit
(155)

98% agree - Would recommend
£15.99 New
ClearWater Swimming Pool and Hot Tub Chemical Starter Kit
(82)

100% agree - Would recommend
£15.00 New
£7.79 Used
ClearWater CH0005 Increaser for Swimming Pool and Spa Treatment
(65)

100% agree - Would recommend
£4.99 New
Aquasparkle Non Chlorine Shock 1Kg for Hot Tub Spa Swimming Pool Chemicals
(51)

97% agree - Would recommend
£19.99 New
Quality Happy Hot Tubs Ph Plus 5kg Tub Spa Swimming Pool Soda Ash Spas Raiser
(32)

100% agree - Would recommend
£18.70 New
Blue Horizons PHPLUS05BH 5Kg Ph Plus Pool Balancer
(20)

100% agree - Would recommend
£21.70 New
AquaSparkle Spa pH Minus - 1.5kg
(11)

100% agree - Would recommend
£10.00 New
Clearwater Lay-Z-Spa Chemical Starter Kit - CH0018
(10)
£20.99 New

Pool pH Adjusters

Shop by category

559 results

pH Plus Increaser 5kg Swimming Pool Chemicals & Spa

Bestway Clearwater Chemicals Swimming Pool Spa Hot Tub Chlorine Starter Kits

PH Increaser 1KG PH Plus Hot Tub Swimming Pool Spa Water Treatment Blue Sparkle

20g CHLORINE TABLETS 5 IN 1 Multifunction SWIMMING POOL HOT TUB SPA

AquaSplash 7Kg pH Reducer (pH Minus -)

pH Increaser Granules, pH PLUS 1Kg for Swimming Pools, Hot Tubs & Spas aBalchemy

pH Increaser Granules, pH PLUS 5Kg for Swimming Pools, Hot Tubs & Spas aBalchemy

7kg pH Minus pH Reducer - Swimming Pool & Spa Chemicals

50x20g Chlorine Tablets Pool Hot Tub Spa + Dispenser + Testing strips FULL KIT!

CLEARWATER SWIMMING SPA HOT TUB TREATMENT STARTER CHEMICAL KIT

SUDS-ONLINE 5KG pH Plus (Increaser) for Swimming Pools, Spas and Hot Tubs

Hot Tub PH Increaser PH+

Aqua Sparkle Range Hot Tub Chemicals Disinfectant Sanitisers Balancers Cleaners

PH MINUS REDUCER DECREASER 1.5KG Hot Tub Chemicals Spa Swimming Pool Water

50 Chlorine Tablets + Dispenser + Testing strips Kit for Hot Tub Spa jacuzzi

Bestway Clearwater Spa Starter Kit Chlorinating Granules, pH Adjuster - CH0018

Non-Chlorine Shock Granules Aquasparkle Hot Tub Spa Pool Oxidiser 1kg

Sodium Bisulphate 25KG bag pH Minus Dry Acid Food Grade - CHEAP - FAST DELIVERY

Swimming Pool Hot Tub Chemical Water Cleaner Starter Treatment Kit - 500G

PH MINUS 7KG / DRY ACID REDUCER - SWIMMING POOL SPA HOT TUB CHEMICALS SUDS

Hexeal pH PLUS | 1kg Jar | pH + Increaser for Swimming Pools, Spas, Hot Tubs

7KG pH Reducer (pH Minus) for Swimming Pools, Spas and Hot Tubs

Hexeal pH PLUS | 5kg Bucket | pH + Increaser for Swimming Pools, Spas, Hot Tubs

BESTWAY 1249L Pool Pump FLOWCLEAR Filters + CLEARWATER PH Plus / Minus CHLORINE

PoolSan pH Minus pH reducer and alkalinity reducer 400gr for pools & hot tubs

Hexeal pH PLUS | 5kg Bottle | pH + Increaser for Swimming Pools, Spas, Hot Tubs

pH Minus pH Reducer 1.5KG Hot Tub Chemicals Spa Swimming Pool Water Balancer

NEW! Aquasparkle 1kg Non-Chlorine Shock Granules Hot Tub Spa Swimming Pool

Swimming Pool Starter Chemical Chlorine Tablets Treatment Kit for Clear Water

Fi-clor Swimming Pool pH & Alkalinity Reducer (Dry Acid) 7kg

CLEARWATER POOL STARTER KIT WATER TREATMENT SWIMMING HOT TUB CHLORINE ALGAECIDE

NEW! Aquasparkle PH+ Up Plus 1Kg Hot Tub Swimming Pool Spa Soda Ash Increase

Bestway ClearWater Lay-Z-Spa, Swimming Pool, Spa & Hot Tub Chemicals & Kits

4 x Aquasparkle Spa Fusion Shock Treatment Hot Tub Pool Tubs Spas Oxidiser Lite

Hot Tub PH Decreaser PH-

Hexeal pH Adjuster Kit | 1kg pH PLUS & 1.5kg pH MINUS Jar | pH + & -

PH + Plus Increaser Castle Hot Tubs Swimming Pool Spa 5 Kg

5kg pH plus increaser hot tub lay-z spa pools high quality PH+ - CHEAPEST

Jarder PH Plus PH Increaser Granules for Hot Tubs Pools Spa Water PH Levels 1kg

50 x 20g Chlorine Tablets: HotTub Pool Spa

Canadian Spa Company Grand Rapids Swimming Pool, Spa & Hot Tub Chemicals Kit

ProKleen pH-Reducer Sodium Bisulphate Swimming Pools Hot Tub Spa Water 1.5kg

20x20g Chlorine Tablets Pool Hot Tub Spa + Dispenser + Testing strips FULL KIT!

500g pH minus decreaser hot tub lay-z spa pools high quality PH -

Clearwater PH Decreaser 1.5kg

Blue Horizons Swimming Pool Ph Plus - 5kg

Happy Hot Tubs PH - Minus for Swimming Pools Hottubs Tub Alkalinity Reducer Down

50x20g Chlorine Tablets for Pools, Hot Tubs, Spas + 20 Testing strips

pH Minus PH decreaser- 250g Decrease pH of Swimming Pool Water Free UK PP

PH - Minus Reducer Down Blue Horizons Hot tub Spa Pool Dry Acid 7kg

Hexeal pH MINUS | 1.5kg Jar | pH - Reducer for Swimming Pools, Spas, Hot Tubs

SUDS ONLINE SWIMMING POOL CHEMICALS- CHLORINE TABLETS GRANULES ALGAECIDE LIQUID

ClearWater Lay-Z-Spa Swimming Pool Hot Tub Chemicals Accessories Starter Kits

Clearwater Pool/SPA Starter Kit Chemical Chlorine Granules Water Foam Remover

1KG pH Plus (Increaser) for Swimming Pools, Spas and Hot Tubs

Small Dispenser With 5 Ultimate Chlorine Tablets 20g

ClearWater Swimming Pool and Hot Tub Chemical Starter Kit

Clearwater Hot Tub Ph Reducer Ph Minus 700g Each x 2 NOT x 3

Hot Tub Starter Chemical Chlorine Tablet Treatment Kit For Spa Pool Clear Water

1KG pH+ Plus pH Increaser Chemicals MSPA Hot Tub Swimming Pool Water Treatment

Best selling

ClearWater CH0005 Increaser for Swimming Pool and Spa Treatment

50x20g Chlorine Tablets Pool Hot Tub Spa Dispenser Testing Strips Full Kit

Aquasparkle Non Chlorine Shock 1Kg for Hot Tub Spa Swimming Pool Chemicals

Clearwater Lay-Z-Spa Chemical Starter Kit - CH0018

ClearWater Swimming Pool and Hot Tub Chemical Starter Kit

AquaSparkle PH+ Raiser UP for Hot Tub and Swimming Pool - 1kg

Shatchi ‎BS00800 Swimming Pool Water pH Adjuster

AquaSparkle Spa pH Minus - 1.5kg

Top-rated

50x20g Chlorine Tablets Pool Hot Tub Spa Dispenser Testing Strips Full Kit

ClearWater Swimming Pool and Hot Tub Chemical Starter Kit

ClearWater CH0005 Increaser for Swimming Pool and Spa Treatment

Aquasparkle Non Chlorine Shock 1Kg for Hot Tub Spa Swimming Pool Chemicals

Quality Happy Hot Tubs Ph Plus 5kg Tub Spa Swimming Pool Soda Ash Spas Raiser

Blue Horizons PHPLUS05BH 5Kg Ph Plus Pool Balancer

AquaSparkle Spa pH Minus - 1.5kg