Talon 15mm EZ Joist Clip - Polypropylene Connector Bracket Clamp Holder - Pack of 100 - for Home Improvements, Plumbing Pipework, Gas Pipes, Hot Or Cold Water Pipe, Holds Metal Copper PVC Plastic - - Amazon.com
Plumbsure Plastic Double Pipe clip M551DQV3 (Dia)15mm, Pack of 10 | DIY at B&Q