Clearwater Chlorine Granules for Hot Tub Spa and Swimming Pool Water Treatment for Rapid Disinfecting and Cleaning, Pail, 5 k
Reviewed 1 September 2026 · price checked live
Check price on Amazon →Overview
We track Clearwater Chlorine Granules for Hot Tub Spa and alongside 48 other pools, hot tubs & supplies products, comparing it on rating, how many people have rated it and what it currently costs. According to the listing: With these stabilised chlorine granules - free active chlorine (FAC) to maintain a healthy swimming environment. So your spa or pool water stays hygienic and healthy. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.7 out of 5 from 11,864 ratings. What that score is worth next to its rivals is set out below.
- Brand
- Clearwater
- Amazon rating
- 4.7 / 5 from 11,864 ratings
- vs Pools, Hot Tubs & Supplies
- 0.2 above the category median of 4.5
- Rank in category
- 2 of 49 rated pools, hot tubs & supplies we track
- Price position
- Towards the top of the range (category spans £4.99 to £40.00)
- How proven
- Well established, above-average review volume
How it compares in Pools, Hot Tubs & Supplies
Across the 49 rated pools, hot tubs & supplies products we track, the typical score is 4.5 out of 5. This one sits at 4.7, which puts it in the upper quarter of the category rather than level with it. Where almost everything is rated well, the gap at the top is small in points and large in practice. That places it second of the 49 we rank here.
It carries 11,864 ratings against a category median of 1,112. A rating from a large base is harder to distort and tends to hold up over time, so a high score here means more than the same score on a new listing.
On price it sits in the upper third of a category running from £4.99 to £40.00, where the midpoint is about £12.99. It is priced above the field and rated above it too, so the premium is at least matched by how buyers rate it.
Worked out from the 49 pools, hot tubs & supplies products in our catalogue, not from the brand's own claims. How we rank →
Key features
- DISINFECT POOL AND HOT TUB WATER: with these stabilised chlorine granules - free active chlorine (FAC) to maintain a healthy swimming environment
- KILL BACTERIA AND ELIMINATE HARMFUL ORGANISMS: so your spa or pool water stays hygienic and healthy
- FAST DISSOLVING GRANULES: get to work instantly - no more waiting around for hours for tablets to dissolve
- STABILISE CHLORINE LEVELS: to help ensure your water chlorine level stays between 1-3 mg/litre (ppm) for pools and 3-5 mg/Litre (ppm) for hot tubs
- EASY TO FOLLOW INSTRUCTIONS: included with the granules help you select the correct amount to apply for the desired increase in chlorine level
