The John Guest black push‑fit acetal female adaptor (BSP thread) provides a quick, reliable way to connect metric pipework to BSP fittings.

 Designed for fast, tool‑free installation, it creates an instant, leak‑tight push‑fit seal without the need for heat or sealing compounds. Its unique collet locking mechanism securely grips the pipe without causing deformation or restricting flow, while the corrosion‑resistant, fully demountable design supports easy maintenance and minimises system downtime. Manufactured from durable acetal copolymer, this fitting is suitable for water, potable liquids, and intermittent hot water applications up to 65°C, and is proudly made and assembled in the UK.