Since 1981, Valterra Products has been a leading supplier of brand name product lines to the RV, pool and spa and plumbing industries. Valterra's maquiladora Contract Manufacturing Division offers low-cost custom manufacturing and assembly services to client companies seeking to reduce costs and improve the bottom line.• Compatibility: 1 Inch To 2-3/8 Inch Outside Diameter Vent Pipe/ Fits Up To 2 Inch Inside Diameter Vent Pipe• Color: Black• Material: Plastic• Includes Cap: Yes• Includes Putty Tape: Yes• Includes Mounting Hardware: Yes Built To Provide Exceptional Levels Of Durability Easy To Use | Valterra Sewer Vent