↵ Underfloor Heating / Hot Water PERT-AL-PERT Pipe 8.8mm inner and 12mm outer. (1.6mm pipe wall) ---CE certified to meet with all the EU and UK standards ---High mechanical strength and durability ---Easy to cut, bend, and fit High temperature ---High pressure and corrosion resistance ---Corrosion free 100% Oxygen barrier ---Smooth inner surface to reduces resistance to the fluids,make heating warm up quicker ---1MPa (10 bar) pressure, temp. 95 degree ---50 year warranty ---You can purchase our 12mm to 3/4" manifold connectors by clicking on this link https://www.ebay.co.uk/itm/392178126511.