Selkirk 4-in x 4-1/2-in 90-Degree Galvanized Elbow ITEM #53480 Ultrasonic welding and integrated construction

Ultrasonic welding and integrated construction of the strap and body provide superior structural integrity

Panel that is easy to cut

This single cylinder deadbolt can be locked or unlocked by a key on the outside

THE CONTROL CAN BE MOUNTED IN ANY POSITION EXCEPT UPSIDE DOWN AND ALL MODELS HAVE 3-POSITION OUTLETS

Selkirk 4-in x 4-1/2-in 90-Degree Galvanized Elbow ITEM #53480 Ultrasonic welding and integrated constructionThe 4 in. x 9 in. steel 90 adjustable gas vent elbow is a type B fitting used to create an offset around rafters, joists and other construction obstacles. The strong, durable, galvanized steel outer pipe has internal spacing bends to create a uniform insulating air space between pipe walls. Each end is die formed to assure uniform sizing for strong, easy to connect joints. A lock tab feature offers the option of installation without sheet metal