Selkirk 104800 Gas Vent Bird Proof Round Top, 4" Roller Sets & Kits Easy-read oversized 1/2" dia

Easy-read oversized 1/2" dia

Size: 4" x 4"

Features adjustable latch to fit all standard door preparations ANSI/BHMA Grade 3 Security Non-handed lever design to fit both right and left handed doors Featuring SmartKey® Re-key Technology

Offers secure protection from predatory animals

Box joint diagonal

Selkirk 104800 Gas Vent Bird Proof Round Top, 4" Roller Sets & Kits Easy-read oversized 1/2" diaHighlights: Size: 4" 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 birds Boxed