ceiling fans
dayton 4fzk1 exhaust shutterfits fan dia 36 inss
backdraft damper wall shutter fits fan dia . 36 in . overall square 39 in . opening required 36 1 2 in . x 36 1 2 in . frame depth 2 in . open depth 5 3 4 in . flange width 1 1 2 in . mounting hole size prepunched free area 7.436 sq.ft . max . velocity 2500 fpm vertical mounting position blade material stainless steel stainless steel frame and tie rods for use with vertical mounted exhaust fans number of panels 2 br b features b ul li fits fan dia . in . 36 li li flange width in . 1 1 2 li li for use with vertical mounted exhaust fans li li free area square ft. 7.436 li li item backdraft damper wall shutter li li open depth in . 5 3 4 li li opening required in . 36 1 2 x 36 1 2 li li overall square in . 39 li li type gravity operated double panel li li frame opening a 36 li li frame opening b 36 li li mounting position vertical li li blade material stainless steel li li construction material stainless steel frame and tie rods li li frame depth in . 2 li li max . velocity fpm 2500 li li mounting hole size in . 9 32 x 1 2 li li number of panels 2 li li mounting hole size prepunched li li flange width 1 1 2 li li opening required 36 1 2 x 36 1 2 li li frame depth 2 li li free area 7.436 sq.ft . li li max . velocity 2500 fpm li li open depth 5 3 4 li li fits fan dia . 36 li li overall square 39 li ul