Duravent Fasnseal 3-Inch X 4-Inch Stepped Increaser - FS34I

Product Features

• Triple lipped directional gaskets which allows for ease of installation
• Features a patented built in mechanical locking band
• Increaser
• 3" to 4"
• Inner Diameter: 3"
• Fuel Types Compatible With: Gas
• UL Listed: Yes
• Length: 6"
• Single Wall Construction
• Product Weight: 4.6 lbs
• Pipe Inside Diameter: 4-inches
• Vent Pipe Size: 4-inches
• Inner Pipe Material: AL-29-4C Stainless Steel
• Pipe Shape: Round
• Pipe Class: AL29-4C
• Fuel Type: Gas