DuraVent 4" PolyPro Appliance Adapter for PVC Pipe

4" PolyPro Appliance Adapter for PVC Pipe. Use to connect PolyPro vent system to an appliance outlet. Has a double female adapter. One end accepts PVC male pipe and the other accepts PolyPro male pipe. No adapter connector and/or locking band required. PolyPro. is engineered for use with category II and IV condensing gas/oil appliances and heating equipment, including tankless water heaters, high efficiency water heaters, condensing boilers and warm air furnaces. Application PolyPro is a polypropylene vent pipe for use with ANSI Category II and IV gas-burning appliances, including high efficiency water heaters, condensing boilers and warm air furnaces. PolyPro is listed by Intertek to the ULC SC636 standard in Canada as a Class IIA, IIB and IIC vent system suitable for exhaust temperatures up to 230F / 110C, and a maximum positive pressure of 15 in-w.c. Materials and Construction Rigid pipe constructed of 2.2mm (minimum) thick polypropylene. Flex is double-wall polypropylene. EPDM or optional Viton Gaskets...