Snappy™ SBF30 Return Air Support Box with Filter Drawer

HVAC Return Air Filter Box : 9 Steps return air support box with filter slot HVAC Plenum & Filter Boxes · 20 X 20 X 30 WFilter Rack Return Air Duct Plenum-26 Gauge, HVAC Duct Work · 90 Degree Elbow 20 x 20 return air box with filter slot Contents · 1 Waveguide branch-line coupler · 2 Bethe-hole directional coupler · 3 Riblet short-slot coupler · 4 Schwinger reversed-phase coupler

return of kong slot This return air support box is for use with systems where the return air must come in underneath the furnace or air handler The support box can hold a