Selkirk 184222 Adjustable Gas Vent Elbow, 4" Wall Channel - Wiremold Made of plastic the float

Made of plastic the float needs to be inflated

Fits 3-5/8" or 4" centers

Features a low wide shape with an extra wide top

Drill has variable speed reverse for drilling and driving control

Bodt finish: Electrostatically applied baked on polyester

Selkirk 184222 Adjustable Gas Vent Elbow, 4" Wall Channel - Wiremold Made of plastic the floatHighlights: Size: 4" Type B gas vent OD = ID + 1 2" Adjustable Inner wall aluminum, outer wall galvanized For gravity draft venting of "listed" LP or natural gas burning appliances 100 million BTU per hr., 500 deg. F max Appropriate for thru wall where applicable Not for wall furnaces Boxed