Philmac Non Return Valve 1 1/2"/ 40mm size Check dimensions on your dog:

Check dimensions on your dog: this will not suit dogs with very large snouts like Great Danes

Check that the seal is seated on the lip on the underside of  the lid

but the Ozfarmer custom option replaces it with the superior 3-piece regulator

Ball's famous glass jars are also suitable for gifts

Philmac Non Return Valve 1 1/2"/ 40mm size Check dimensions on your dog:Philmac non return valves have been successfully servicing the Australian market for more than 20 years with a reputation for quality and reliability. Designed to allow water to flow in only one direction to avoid loss of water, prevent backflow and ensure pipelines do not drain. The valves have been designed to work in either vertical or horizontal position for flexible installation. Redesigned piston shaft minimises the wear on the piston