The John Guest black push-fit acetal straight adaptor (NPTF thread) connects metric pipe or tubing to an NPTF threaded connection. Designed for quick, hassle‑free installation, John Guest push-fit fittings provide an instant, reliable seal without the need for tools, heat, or sealing compounds.

Its advanced collet locking mechanism grips the pipe securely without causing deformation or restricting flow. The fittings are corrosion resistant and fully demountable, helping to enhance system performance and reduce downtime during maintenance.

Manufactured from acetal copolymer and fitted with a food‑grade nitrile O‑ring, this adaptor is suitable for food applications, potable liquids, and inert gases. In line with the British Beer & Pub Association Code of Practice, it is also approved for use with N₂/CO₂ and mixed gas dispense systems, as well as air, pneumatic, and vacuum applications. All John Guest fittings are produced and assembled in the UK.