John Guest Drinks Grey Acetal Plug

Designed to seal unused ports on John Guest push-fit fittings within drinks dispense and water treatment systems. This fitting provides a simple and reliable way to blank off spare outlets during installation, commissioning or system modification. Featuring a precision-moulded imperial stem. The stem inserts directly into a compatible John Guest push-fit fitting, where the host fitting’s collet and O-ring create the seal.

It is commonly used in pub cellar and bar environments to isolate spare branches on tees, crosses and manifolds in beer, beverage or gas lines. This helps maintain pressure integrity and prevents contamination or leakage from unused ports. Manufactured from strong acetal copolymer in dark grey, the plug offers reliable mechanical performance. It is suitable for potable liquids, food grade liquids and inert gases. In accordance with recognised industry practice, it can be used on CO2, nitrogen and mixed gas dispense systems, as well as air, pneumatic and vacuum applications up to 16 bar for air.

• Stem design: Inserts directly into John Guest push-fit fittings.
• Port isolation: Safely blanks unused outlets in beer and gas systems.
• No internal collet: Sealing achieved by the host fitting mechanism.
• Food grade suitability: Suitable for potable liquids and beverage systems.
• Gas compatible: Appropriate for CO₂, nitrogen and mixed gas lines.
• High pressure capability: Rated up to 16 bar for air.