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HydroQuip 34-0197-K
Hayward Indoor Vent Adapter Kit UHXNEGVT12506
UV inhibitors to prevent de-lamination
Polaris 9-100-1240
The brightest and most efficient LEDs available
DuraChlor Calcium Hardness Increaser - 10 Pounds hayward-northstar-pump-parts HydroQuip 34-0197-KDuraChlor 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: 10 Pounds Dosage Amount: Add 1.