DuraChlor Calcium Hardness Increaser - 25 Pounds hayward-h-series-low-nox-heater-parts Can work with almost any

Can work with almost any chemical automation system

Elbow Adapter with 1/4" Tap for the following Chlorine and Bromine Feeders:

Up to 18' round - (1) Panel

lifeguard chairs and rails

DuraChlor Calcium Hardness Increaser - 25 Pounds hayward-h-series-low-nox-heater-parts Can work with almost anyDuraChlor Calcium Hardness Increaser Calcium Hardness Increaser is used to raise the total hardness in swimming pool water. Low calcium levels can cause damage to the pool surface and equipment such as etching, pitting, corrosion or other similar problems. Calcium Hardness Increaser Features: Raises the water hardness in pool water Proper calcium levels prevents damage to pool surface and equipment Calcium flakes Size: 25 Pound Bucket Dosage Amount: