ceiling fans
dayton 4fzj1 exh shutterfits fan dia 42 inaluminum
backdraft damper wall shutter fits fan dia . 42 in . overall square 45 in . opening required 42 1 2 in . x 42 1 2 in . frame depth 3 in . open depth 6 1 4 in . flange width 1 1 2 in . mounting hole size prepunched free area 10.253 sq.ft . max . velocity 3000 fpm vertical mounting position blade material mill finish extruded aluminum mill finish extruded aluminum frame and stainless steel tie rods for use with vertical mounted exhaust fans number of panels 2 br b features b ul li fits fan dia . in . 42 li li flange width in . 1 1 2 li li for use with vertical mounted exhaust fans li li free area square ft. 10.253 li li item backdraft damper wall shutter li li open depth in . 6 1 4 li li opening required in . 42 1 2 x 42 1 2 li li overall square in . 45 li li type gravity operated double panel li li frame opening a 42 li li frame opening b 42 li li mounting position vertical li li blade material mill finish extruded aluminum li li construction material mill finish extruded aluminum frame and stainless steel tie rods li li frame depth in . 3 li li max . velocity fpm 3000 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 42 1 2 x 42 1 2 li li frame depth 3 li li free area 10.253 sq.ft . li li max . velocity 3000 fpm li li open depth 6 1 4 li li fits fan dia . 42 li li overall square 45 li ul