DZR fittings can be used on a wide range of applications including central heating and hot & cold water supplies. Easy to use, just place the reducer onto the pipe, insert into the application and tighten. Upon tightening the reducer shears in two and forms an olive in situ from the pipe. Fast and simple installation. Heat free, no soldering needed. Joint can be dismantled and re-built. Joints can be made on wet pipework. Standard 5 Year Manufacturing Guarantee. Manufactured to EN1254 Specification. WRAS approved where required. Pressure tested to 16 bar. UK manufacture. Actual Size: 15 x 8 mm