ventilation fans
solberg fs 235p 400 silencer4 mnpt out520 cfm maxpoly
silencer mnpt outlet 4 in max flow 520 cfm filter rating 5 microns polyester filter media noise reduction rating nrr 5 to 15 db filter efficiency over 99 % temp range 15 to 220 f polyester cloth housing material height 14 in nipple length 4 in dia 16 in silencer tube design br b features b ul li m npt outlet in . 4 li li dia . in . 16 li li filter rating microns 5 li li for use with li li height in . 14 li li item silencer li li max . flow cfm 520 li li outlet in . 4 m npt li li temp . range f 15 to 220 li li design silencer tube li li filter efficiency % over 99 li li filter media polyester li li housing material carbon steel li li noise reduction rating nrr db 5 to 15 li li nipple length in . 4 li ul