The Plasson Reducing Coupling 7110 (25mm - 20mm) is an essential straight compression fitting designed to smoothly join two differing sizes of metric polyethylene (PE) or MDPE water supply pipe, transitioning from a 25mm main down to a 20mm sub-line. It is widely utilized by plumbing, utility, and agricultural professionals during system layout changes, repairs, or network expansions where flow lines must be stepped down directly without complex multi-part manifold arrangements.
 
Manufactured from high-grade virgin polypropylene, this reducing coupling provides exceptional impact strength, environmental stress resistance, and complete immunity to rust or corrosion. The internal mechanism features captive O-ring seals and robust split rings that mechanically grip each pipe securely upon tightening, ensuring that the joint maintains structural stability and prevents tube pull-out under operating pressure.
 
Engineered for rapid, tool-free installation on site, the fitting allows technicians to simply insert the prepared pipe ends to the stop and tighten the compression nuts by hand or with a standard wrench. Fully WRAS-approved for wholesome potable water and rated for high working pressures up to 16 bar (PN16), this trade-quality reducing coupling delivers reliable performance and long-term durability across both subterranean and surface-mounted infrastructure.