OPC 5kg Stabilised Chlorine Granules - Swimming Pool Chlorine Sanitiser

Never used these before. Usually use a well known brand. These do the job perfectly. I don't need to add as much as I do with the others. It helps maintain the ph and alkaline levels. I've only needed to add the weekly dose of algacide

Good strength chlorine granules mixes easily has kept my pool sparkling all summer

Cheap and effective in my hot tub - great product

great

Has cleared my pool after winter ravaging.Good product.

Great value for money

Great price

Excellent