Easy Fit Collar & Seal for 100mm Boiler Flues BLACK - Plumbing & Heating from Build and Plumb UK
Pipesnug Black Waste Pipe Collar-Seal 40mm (2 pack) | TWS Plastics Online Store
External Sealing of Pipes - Newton Waterproofing
Goof Proof Shower Goof Proof Waterproofing Sheet Membrane Underlayment Flexible Pipe Collar 4.25 in. x 4.25 in. x 20mil GPFPC-Flexible Pipe Collar - The Home Depot
Perimeter drainage sealing - LITOBAND SK PIPES COLLAR - LITOKOL - for pipes / flexible / polypropylene