![Berkey Blocking Plug (Screw Version)](http://www.berkey.com.hk/cdn/shop/products/vpp_plug__84303.1413312273.500.750_{width}x.jpg?v=1548410711)
- Blocking plug to block any unused filter holes in the upper chamber of all stainless steel Berkey systems
- Fits all stainless steel Berkey systems including the Go Berkey, Travel Berkey, Big Berkey, Royal Berkey, Imperial Berkey, Crown Berkey, and British Berkefeld models
- All stainless steel systems come standard with the proper amount of blocking plugs; in case of loss or damage, plugs may be purchased individually
- Blocking plug comes with wingnut and 2 washers
- Not recommended for the Berkey Light system