Berkey Screw-in Style Heavy Duty Blocking Plug

Same as originally supplied with: Royal Berkey Imperial Berkey Crown Berkey Details: Each locking plug is supplied with: 1x Wingnut 2x Washers Designed for larger Berkey systems with higher gravity pressure Blocking plug blocks any unused filter holes in the upper chamber of larger 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 Berkfield models. Genuine replacement in case of loss or damage Ideal to keep as spares Not recommended for the Berkey Light system Supplied as each (VPPPLUG)