Snap-lock coupling ends and lightweight. Rugged, double-wall construction of corrosion-resistant galvanized steel and aluminum. Double wall type b vent pipe. SKU: 41662224 MFG: 4E5 Shop more products by AmeriVent. SHARE Share on Facebook Tweet on Twitter Share on Google+ Pin on Pinterest Shipping charges calculated at checkout. $35.70 Quantity 6 12 18 24 30 36 42 48 54 60 In Stock Add to cart Request a Bulk Quote Thank you for your quote request. We will be in touch. DETAILS Description DESCRIPTION Highlights: Size: 4" x 5' Gas vent pipe Material: Aluminum/Steel Finish: Galvanized Double wall type b vent pipe Rugged, double-wall construction of corrosion-resistant galvanized steel and aluminum Snap-lock coupling ends and lightweight FEATURES MFR: 4E5 SKU: 41662224 UPC: 095029400801 Brand: AmeriVent