The Solder Ring Stop End (15mm) is an essential plumbing fitting designed to securely seal off the end of a 15mm copper pipeline. Ideal for pressure testing sections of pipework, terminating unused lines during alterations, or capping off supplies during renovations in domestic central heating and hot and cold water systems, this stop end provides a permanent and reliable barrier against fluid leaks.
 
Manufactured from high-quality copper conforming to relevant British Standards (such as BS EN 1254), the fitting features a pre-formed ring of lead-free solder embedded directly within the socket. This integrated solder design eliminates the need for manual solder wire application during assembly, ensuring an exact, pre-measured amount of metal is drawn evenly into the joint via capillary action when heated, creating a robust, permanent, and leak-free seal.
 
Engineered for efficient installation by professional plumbers and experienced practitioners, the stop end requires standard pipe cleaning, fluxing, and blowtorch heating to activate the internal solder ring. Whether you are isolating a redundant pipe run, pressure-testing a new installation, or preparing a system for future expansion, this trade-quality stop end delivers dependable structural integrity, excellent corrosion resistance, and long-term hydraulic performance.