1" FNPT PVC Schedule 80 Special Reinforced Female Adapter with SS Collar | U.S. Plastic Corp.
ISO2531, En545, En598, BS4772 Ductile Cast Iron Pipe Fitting Dci Collar for PVC Pipe - China Collar, Ductile Cast Iron Collar | Made-in-China.com
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