{"product_id":"compression-15mm-x-8mm-1-piece-reducer","title":"Compression 15mm x 8mm 1 Piece Reducer","description":"The Compression 15mm x 8mm One-Piece Reducer from Evolve is a clever little fitting designed to simplify transitions between different pipe sizes—specifically from 15mm to 8mm. It's particularly useful in central heating systems or older pipework setups where smaller diameter pipes are still in use.\n\nThis reducer works by fitting inside a standard 15mm compression fitting—such as a radiator valve, elbow, tee, or coupler—replacing the standard olive. Once in place, it allows the fitting to securely accommodate an 8mm pipe, providing a neat and compact solution without the need for bulky adapters or additional fittings.\n\nIt’s ideal for both professional installers and DIY users who need a quick, reliable method for adapting pipework during upgrades, repairs, or modifications. The one-piece design means fewer parts to worry about, reducing the chances of leaks and simplifying installation.\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e \u003ch4\u003eWhat does this reducer actually do?\u003c\/h4\u003e It allows a 15mm compression fitting to securely connect to an 8mm pipe by replacing the olive. It’s a space-saving and convenient way to adapt between pipe sizes without needing extra joints. \u003cbr\u003e \u003ch4\u003eIs it suitable for central heating systems?\u003c\/h4\u003e Yes, it’s commonly used in central heating installations—especially in homes where 8mm microbore pipes are used for radiators and 15mm is used for the main supply lines. \u003cbr\u003e \u003ch4\u003eDo I need any special tools to fit this reducer?\u003c\/h4\u003e No special tools are needed. Just standard spanners or adjustable wrenches to tighten the compression fitting. Make sure the pipe is cut cleanly and inserted fully for the best seal.\u003cbr\u003e\u003cp\u003eCheck out our full range of \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/plumbing-supplies\"\u003eplumbing supplies\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eBrowse more \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/compression-fittings\"\u003ecompression fittings\u003c\/a\u003e available online.\u003c\/p\u003e","brand":"JJ Building Materials","offers":[{"title":"Default Title","offer_id":50802392072534,"sku":"148760","price":0.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/compression-15mm-x-8mm-1-piece-reducer-3593747.jpg?v=1772662457","url":"https:\/\/jjbuildingmaterials.co.uk\/products\/compression-15mm-x-8mm-1-piece-reducer","provider":"JJ Building Materials","version":"1.0","type":"link"}