4Pcs Adjustable Pipe Bracket Pipe Clamps, Wall Mount Ceiling Mount Pipe Support, Stainless Steel Bracket Clamp, Strong and Stable for Dia 19-22mm, Ideal for Pipe, Tube or Rod Fixing Etc. : Amazon.co.uk:
Oatey Adjustable Pipe Support Bracket with 1/2 in. Insulator Pipe Clamps 33585 - The Home Depot
Amazon.com: WYKA 1-11/32 Inch Split Ring Hanger Pipe Strap,2 Pack Heavy Duty Iron Galvanized Universal Hinge Lantern Hoops Ceiling Mount Pipe Supports Adjustable Bracket Pipe Clamps ID 34mm : Everything Else