The Polypipe PolyPlumb Enhanced Incert10 10mm pipe stiffener in black is designed to reinforce plastic pipes in push-fit plumbing systems. Featuring Polypipe’s patented In-Cert feedback technology, it ensures secure and reliable joints by providing tactile confirmation when the pipe is fully inserted. Compatible with PolyPlumb fittings and polybutylene pipes, this stiffener is ideal for hot and cold water, heating, and underfloor heating applications. WRAS and BS 7291 approved, it offers long-lasting performance and peace of mind for professional installations.