Rubber Washer for Berkey Earth® & Ceramic Filters faucet water filter Essential for hydroponic nutrient solution

Essential for hydroponic nutrient solution EC control (automated dosing)

a chart of the actual µS/cm value at various temperatures is printed on each sachet

Mean Lot Value: Actual measured pH value for the specific lot

01 is the neutral point calibration standard used in multi-point calibration procedures

Rubber Washer for Berkey Earth® & Ceramic Filters faucet water filter Essential for hydroponic nutrient solutionThe Berkey Earth Ceramic Filter Rubber Washer is the essential sealing component that comes standard with every Berkey Earth ceramic filter element. Over time, rubber washers wear from repeated installation and water exposure a degraded washer compromises the seal between the filter stem and housing, allowing unfiltered water to bypass the filter media. Replacing it restores full system integrity. Compatibility This washer is compatible with: Berkey