ducting
atco 13102512 insulated flexible duct12 in . dia .
insulated flexible duct insulation value r 8.0 upc number 31 inside dia . 12 in . wall thickness 2 1 2 in . vapor transmission 0.05 material polyester length 25 ft. max . air flow 5000 fpm max . pressure 6 in.wc max . temp . 140f compressed size 38 in . low temp . deg . 20f fire rating flame spread smoke developed less than 25 less than 50 for use with low pressure air moving systems features double ply vapor barrier with tri directional reinforcements br b features b ul li compressed size in . 38 li li length ft. 25 li li low temp . deg . f 20 li li inside dia . in . 12 li li upc number 31 li li wall thickness in . 2 1 2 li li vapor transmission 0.05 li li for use with low pressure air moving systems li li item insulated flexible duct li li max . pressure in wc 6 li li max . temp . f 140 li li type polyester li li agency compliance ul181 nfpa 90a & 90b imc irc umc 10 1 icc es report no . esr 1268 hud cities of chicago new york san francisco county of dade florida california state fire marshall . li li insulation value r 8.0 li li max . air flow fpm 5000 li li features double ply vapor barrier with tri directional reinforcements li li special information rated for indoor use recommended operating pressure is 3 4 w.c. neg . all dia . 6 w.c. pos . for all dia . except 14 18 dia . insulated are 4 w.c. pos . li li fire rating flame spread smoke developed less than 25 less than 50 li li inside dia . 12 li li length 25 ft. li li material polyester li li max . temp . 140f li li standards ul181 nfpa 90a and 90b imc irc umc 10 1 icc es report no . esr 1268 hud cities of chicago new york san francisco county of dade florida california state fire marshall li li wall thickness 2 1 2 li li max . pressure 6wc li li compressed size 38 li li low temp . deg . 20f li li max . air flow 5000 fpm li ul