Located in:Installation Supplies, Registers and Grilles, Grilles, Bath Fan Exhaust Grilles / Accessories
Fantech Plastic Grill With Metal Backdraft Damper/Collar Combination. Not Adjustable for Air Flow. Exhaust Air Applications Only. NOTE: The damper blades do not have a spring. Use for ceiling applications only. Fits 4" Round Duct Duct=4" A=4 7/8" B=3/8" C=1 7/8" D=3 5/8" E=4"