The John Guest black push-fit acetal reducing straight connector is designed to join two metric pipes or tubes of different sizes. Installation is quick and hassle-free, with push-fit technology providing a secure connection and a leak-tight seal—no tools, heat, or sealing agents required.

Its precision-engineered collet locking system grips the pipe firmly without distortion or restricting flow. These fittings are corrosion-resistant and fully demountable, helping to maintain system performance and minimise downtime during servicing.

Manufactured from durable acetal copolymer and fitted with a food-grade nitrile O-ring, this connector is suitable for foodstuffs, potable liquids, and inert gases. In compliance with the British Beer & Pub Association Code of Practice, it can also be used for N₂/CO₂ and mixed gas dispense lines, as well as air, pneumatic, and vacuum applications. All John Guest fittings are manufactured and assembled in the UK.