neverest RKI Backflow Valve 100 mm Insert Check Valve Galvanised Steel with Sealing Rubber Aluminium Flaps

neverest® RKI Backdraft Shutter 4 inch Inline Extractor Fan Backdraft Damper 100mm Fits Only with Metal Ducts - Robust, Galvanized Steel with Rubber Seal

TUPARKA 4 Pack Large Size Metal Hose Clips 91-114 mm Adjustable Ducting Clamps for Securing Hoses and Pipes Tube