The Plasson Conversion Set 7786 (20mm - 1/2in) is a specialized utility fitting kit designed to allow standard metric compression fittings to securely connect legacy or low-density imperial polyethylene pipes. It is widely utilized by plumbing, agricultural, and utility professionals when retrofitting or repairing older water networks, facilitating a dependable transition between 20mm metric infrastructure and 1/2-inch Class C low-density pipe systems.
 
Manufactured from high-grade virgin polypropylene and durable polymers, this conversion set provides exceptional impact strength, environmental stress resistance, and complete immunity to rust or corrosion. The precision-engineered components fit smoothly inside standard fitting bodies, accommodating the distinct outer diameters and wall characteristics of older imperial pipes to ensure a uniform mechanical clamping force.
 
Engineered for rapid, straightforward on-site installation, the set integrates easily into existing fitting assemblies without requiring specialized welding or complex adapters. Approved to relevant British standards (such as BS 1972/76) for low-density piping applications and designed to maintain a robust, watertight seal under normal operating pressures, this trade-quality conversion set ensures long-term reliability across mixed-material water supply networks.