Wall mount feature on this Big Horn Blast Gate Dust Collection Fitting provides a large, 6-1/2" x 3-1/4" flange with mounting holes to attach the fitting on the wall in either the horizontal or vertical direction. Common blast gate function allows you to close one branch of ycentral dust collection system while you are using the other. Simple open or shut design has flat, square plate that moves inside a 3-sided frame to provide a pass-through or shut-off to connect dust collector to ysystem or a branch line to one of your tools. Molded fitting has overall dimensions of 6-1/2" long and 5-1/2" wide closed; 10-1/4" long and 5-1/2" wide in the open position. The port on either side of the gate is 1-1/2" long to provide room to slide on hose and apply hose clamps at each connection. Molded using ABS material to maintain shape and withstand woodshop environment.Unsecured blast gates can be sloppy and tedious to operate. Opening the gate often pulls the hose away from the wall. With its built-in mounting element, the Big Horn wall mounted blast gates take care of everything. Just anchor it directly to the wall for clean and stable operation.Features:Both Ports are tapered from 3.85" to 4.00" in Outer Diameter 1-1/2" long to provide room to slide on hose and apply a hose clampWall mount flange molded on blast gate fitting to shut-off one dust collection line at a timeSimple open or shut design has flat, square plate that moves inside a 3-sided frameOverall dimensions: 6-1/2" x 5-1/2" closed and 10-1/4" x 5-1/2" in open positionThe ports are 1-1/2" long to provide room to slide on hose and apply hose clampsMolded using ABS material for rigidity and durabilityHas built in wall mounting bracket to allow secure anchoring to prevent sloppy opening/closingHose will slide on top of this Port.