Pipesnug Black Waste Pipe Collar-Seal 40mm (2 pack) | TWS Plastics Online Store
RIW Pre-formed Pipe Collars 110mm - Resapol
Underlay sealing collars - Klöber
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
Pipe penetration sealing – fire collars or intumescent pipe wraps? - Quelfire
External Sealing of Pipes - Newton Waterproofing
PipeSnug - Waste Pipe Collar and Seal, Grey 40mm (1 1/2") (Pack of 3) : Amazon.co.uk: DIY & Tools
EPDM pipe sealing collar - Klöber
PipeSnug - Waste Pipe Collar and Seal, White 40mm (1 1/2") (Pack of 3): Amazon.co.uk: DIY & Tools
Sealing pipe collar Wiper Isol-One O | Wetrooms Design