Masontops Regular Mouth Pickle Pipe Silicone Fermentation Airlocks (4-Pack) Legend Series High performance diamond matrix provides

High performance diamond matrix provides 200 times the life of conventional abrasives and enhanced material removal

Installation 4-hole installation (escutcheon plate included)

Tough 1-piece set and forget nosepiece

and can heat an area up to 1700 Sq

Masontops Regular Mouth Pickle Pipe Silicone Fermentation Airlocks (4-Pack) Legend Series High performance diamond matrix providesThe patented Pickle Pipes from Masontops are made out of silicone and designed to automatically vent fermentation gas through a one way valve without letting in any oxygen that can cause spoilage. Its the easiest airlock to use and doesn't require any daily monitoring or burping.