DuraVent DuraVent 4" Inner Diameter - Type B Round Gas Vent Pipe - Double Wall - 3" to 4" Increaser Tee

Round Gas Vent Collection Aluminum Increaser Tee 4 Inch x 3 Inch with 4 Inch Inner DiameterThis Aluminum Increaser Tee 4 Inch x 3 Inch with 4 Inch Inner Diameter from the Round Gas Vent series is a Type B gas component and consists of the duralock system for a tight seal. Attaches smaller pipe to branch and larger pipe to body. Use for a 90° offset or to combine connectors from two or more appliances into a common vent. Branch swivels for alignment. Swivel on male end. Additional sizes available through ...