STI LCC400 Pipe Collar, 4 in, for Plastic Pipe, Silver: Industrial Safety Chain Barriers: Amazon.com: Tools & Home Improvement
AXYZ - 22365 PVC Pipe Hose Collar. - CNCShop US
Charlotte Pipe 3/4 in. PVC Schedule 40 S x S Coupling PVC021000800HD - The Home Depot
Accessories For Synthetic Pvc-P Membranes | Pipe Wrap/Fittings In Pvc-P | Architonic
Z240 Pipe Collars | Abesco USA | Seal PVC, CPVC and ABS* pipes which penetrate thru 1 and 2 hour fire- rated concrete walls and floors | Tested in Accordance with ASTM