Rubber Washer for Berkey Earth® & Ceramic Filters faucet water filter Insert new filter into bottle

Insert new filter into bottle

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

Essential for hydroponic nutrient solution EC control (automated dosing)

Total volume: 1

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

Rubber Washer for Berkey Earth® & Ceramic Filters faucet water filter Insert new filter into bottleThe 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