GC500Z: Vapour Gate Assembly (Left and Right Hand sides) C/W 5/2 AIR VALVE.
GC500DPZ: Vapour Gate Assembly (Left and Right Hand sides) C/W DUSTPROOF 5/2 AIR VALVE.
The 358-955 has been designed for use with Liquip's 5/2 vapour gate Its mode of actuation is via unidirectional lever/roller and return is triggered by a mechanical spring.
Liquip offers a standard version or dustproof version for use as required.