Push straight onto copper tube. Removable and reusable. Water Research Council Approved. British Gas Service approved for water pipes. No tools needed. BS 7291 / PT1 / PT3. Kitemarked. Specifications: Use 1m of copper pipe when coupling to a boiler. On long, exposed runs of pipework, the expansion of Speedfit pipe can cause it to sag. Item may vary from picture, but is equal or better quality.