Calcium Hardness Increaser - 50 Lb. Bag filter-width_12 1/2 inches all Hammerhead motors are pressure

all Hammerhead motors are pressure tested to ensure that they will not leak under normal use

Sodium dichlor kills algae and purifies pool water

This adjustable flow pump is rated to pump 85 gallons of chemicals per day at 25 PSI

This is a Pentair 59001500 Tie Rod for FNS Plus 36 Square Foot D

Calcium Hardness Increaser - 50 Lb. Bag filter-width_12 1/2 inches all Hammerhead motors are pressureThis is a 50 pound bag of calcium hardness increaser which will raise the total the calcium hardness in your swimming pool water. This calcium chloride product is in granular form. For most pools, calcium hardness levels should be maintained between 200 and 400 ppm. Active Ingredient of the Harness Increaser: 100% Calcium Chloride. Directions for Adding Harness Increaser to Your Swimming Pool: If calcium levels are low, add this product directly to