Spa Water Hardener Size:1kg Its slow-dissolving polymer technology delivers

Its slow-dissolving polymer technology delivers continuous clarification

it stops in an easy-to-reach spot

the FR800 iQ effectively traps both large and small debris from pool floors

BioGuard Pool Magnet Plus prevents iron

Effortless and lightweight handling at only 5

Spa Water Hardener Size:1kg Its slow-dissolving polymer technology deliversIncreases calcium hardness levels in spas. Calcium Chloride. Ideal Calcium Hardness level is between 200 300ppm Application: 10g increases Calcium Hardness by 10ppm per 1,000 litres. Product should be pre dissolved in a bucket of water. Dosage rates indicated are only a guide Water Hardener SDS