4" Galvanized Type B Gas Furnace Stove Flue Vent Pipe Collar 4RV-GC (6 COLLARS)

May be used as firestop for openings in floors, ceilings and walls. C = 2-3/8". Size refers to the inside diameter of the pipe or fitting. The outside diameter of RV is approximately 1/2" larger. No. 3RV-GC: Grade: UL Listed, Temperature Rating: 550 F, Size: 3", A Size: 3-3/4", B Size: 8-1/2", C Size: 2-3/8", Material: Galvanized Steel No. 4RV-GC: Grade: UL Listed, Temperature Rating: 550 F, Size: 4", A Size: 4-3/4", B Size: 9-1/2", C Size: 2-3/8", Material: Galvanized Steel No. 5RV-GC: Grade: UL Listed, Temperature Rating: 550 F, Size: 5", A Size: 5-3/4", B Size: 10-1/2", C Size: 2-3/8", Material: Galvanized Steel No. 6RV-GC: Grade: UL Listed, Temperature Rating: 550 F, Size: 6", A Size: 6-3/4", B Size: 11-1/2", C Size: 2-3/8", Material: Galvanized Steel