Discover the John Guest Speedfit Female Coupler, a highly efficient push-fit connector designed for seamless integration of 15mm plastic or copper pipes with male thread fixtures. This pack of 15 couplers is perfect for both taps and toilets, making installations quick and hassle-free. With a simple push-fit mechanism, you can easily attach the coupler to the pipe and hand-tighten onto the fixture without the need for additional tools or hot works. The innovative design allows for a 40% faster installation compared to traditional methods, especially in tight spaces. To disconnect, simply push the collet towards the fitting body and pull the pipe to release. Key features include: - Instant push-fit and hand-tighten connections for rapid installation - Safe and flame-free installation process with no glue or flux required - Grip & Seal collet with stainless steel teeth ensures a secure fit - Compatible with Speedfit PEX, polybutylene plastic pipes (inserts needed), and copper pipes - Suitable for both hot and cold water systems, as well as central heating applications Manufactured and assembled in the UK, this coupler combines durability and ease of use, making it an essential component for any plumbing project.