External screen prevents entry of most bird species. For gravity draft venting of "Listed" LP or natural gas burning appliances. Not for wall furnaces or woodburning applications. SKU: 40132013 MFG: 103800 Shop more products by Selkirk. SHARE Share on Facebook Tweet on Twitter Share on Google+ Pin on Pinterest Free shipping over $35 Normally ships within 24 hours $17.99 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: 3" #3RV-RT Type B gas vent OD = ID + 1/2" Inner wall aluminum, outerwall galvanized For gravity draft venting of "Listed" LP or natural gas burning appliances 100 million BTU per hr., 500 degree F max. Not for wall furnaces or woodburning applications External screen prevents entry of most bird species Boxed FEATURES MFR: 103800 SKU: 40132013 UPC: 053713125522 Brand: Selkirk