Berkey Maintenance Kit by Berkey Keep your Berkey water filter in tip top shape with this convenient maintenance kit! Fits only stainless steel units. Each Kit includes: 2 Berkey approved Scotch Brite scrubbing pads for cleaning Black Filters 1 replacement spigot, 1 pair of Black Filter wingnuts and washers 1 spare priming button, 2 replacement hole plugs and 1 replacement knob