Galvanised Reducing Coupling 25mm x 20mm has a 25mm (1") female BSP thread at one end and a 20mm (3/4") female BSP thread at the other. It joins male threaded fittings or pipe ends of different sizes in a straight line.
The body is made from hot dip galvanised malleable iron for water, air and general pipework applications. Use suitable thread sealant or PTFE tape on the mating male BSP threads.
Avoid joining brass, galvanised and stainless steel fittings directly to one another. Use a plastic or other suitable non-conductive fitting or adaptor between different metals to prevent galvanic corrosion where water is present.
Galvanised Malleable Iron Reducing Coupling Female x Female BSP Specifications