The Berkey Stainless Steel System Maintenance Kit is an essential package for the upkeep of your Berkey filter system. This kit is specifically designed for Stainless Steel Berkey Filter Systems that use Black Berkey Elements. Included in the kit are two Black Berkey Washers, two Wing Nuts, and two Poly Blocking Plugs to ensure a secure and tight fit for your Berkey system. The kit also comes with a Replacement Spigot, a Knob (with screw) for Lid, and a Scotch Brite Pad to keep your system clean and functioning at its best. Whether you're using your Berkey filter system at home, at work, or on the go, this maintenance kit is a must-have to ensure the longevity and efficiency of your system.