- Royal Berkey
- Imperial Berkey
- Crown Berkey
- Each locking plug is supplied with:
- 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
- Sold as each