National Hardware Plain Box Rail 8' Size:8' 2-3/4" to 4" (70-102 mm)

2-3/4" to 4" (70-102 mm) Adjustable Filter Wrench

but small enough to stow anywhere

and the polypropylene inside bolt seal double seal flange is full port as well

1/4' Male pipe thread x 1/4' Female pipe thread

low nail lockout

National Hardware Plain Box Rail 8' Size:8' 2-3/4" to 4" (70-102 mm)National Hardware's 8' Plain Box Rail is designed for use on doors weighing up to 450 lbs. Made from galvanized steel for durability. Can be used with many types of single and multiple brackets for easy installation. For exterior applications. Coated with Weatherguard Protection to withstand harsh weather conditions and prevent corrosion. Rail is carefully formed to give an even tread to hanger wheels.