• Product Categories

440

Sign In To View Prices

A white sheet of perforated metal on a white background.
A close up image of a white floor with holes in it.

Surflo™ T-Bar Diffuser

  • Patented design; diffuses air along ceiling surface for superior distribution
  • 1, 2, 3, 4-way or 2-way corner diffusion
  • R1 insulation blanket
  • Now available with Duct Board plenum option.
  • Fixed 14” collar or no collar*
  • Steel construction
  • White finish
  • Made in the U.S.A.

*Use Series 5400 collar for 6”-12” applications

Models

441 1-way diffusion
442 2-way diffusion
443 3-way diffusion
444 4-way diffusion
445 2-way corner diffusion

 

 

Part # Description Ctn Qty List Price Each
44 4A 4-way, No collar 2 —

Collar Size Neck Velocity 250 350 450 550 650 750 850 1000 1200
For Models 442, A442, 443, A443, 444, A444
6”
Ak .43″ Cfm 50 65 85 105 125 145 165 195 235
Ps <.01 <.01 0.014 0.021 0.029 0.036 0.046 0.065 0.094
Nc <20 <20 <20 <20 <20 23 27 31 35
Throw (442) 4 5 6.5 8 10 11 13 15 17
Throw (443) 3/4 3.5/5 4.5/6.5 6/8 7.5/10 8/11 9/13 11/15 12/17
Throw (444) 3 3.5 4.5 6 7.5 8 9 11 12
7”
Ak .48″ Cfm 70 95 115 140 175 195 230 265 305
Ps <.01 0.011 0.016 0.025 0.034 0.045 0.058 0.081 0.117
Nc <20 <20 <20 <20 17 21 25 28 30
Throw (442) 4.5 6.5 8 9 11 13 16 17 20
Throw (443) 3.5/4.5 4.5/6.5 5.5/8 6.5/9 8/11 9/13 11/16 12/17 14/20
Throw (444) 3.5 4.5 5.5 6.5 8 9 11 12 14
8”
Ak .53″ Cfm 90 115 155 195 230 265 300 350 410
Ps <.01 0.012 0.019 0.029 0.040 0.054 0.070 0.098 0.140
Nc <20 <20 <20 <20 21 26 31 34 37
Throw (442) 5.5 7 9 11 14 16 19 21 23
Throw (443) 4.5/5 5/7 6.5/9 8/11 9.5/14 11/16 13/19 15/21 17/23
Throw (444) 4 5 6.5 8 9.5 11 13 15 17
9”
Ak .575″ Cfm 110 155 200 245 290 340 380 440 540
Ps <.01 0.014 0.023 0.036 0.051 0.066 0.086 0.119 0.172
Nc <20 <20 <20 <20 26 31 33 37 40
Throw (442) 5.5 8 11 13 15 18 20 23 25
Throw (443) 4.5/5 6/9 7.5/11 9/13 11/15 13/18 14/20 16/23 18/25
Throw (444) 4 6 7.5 9 11 13 14 16 18
10”
Ak .62″ Cfm 135 190 245 300 355 400 460 540 660
Ps <.01 0.014 0.023 0.036 0.051 0.066 0.086 0.119 0.172
Nc <20 <20 <20 22 29 35 38 42 >45
Throw (442) 6 8 11 14 17 19 21 25 26
Throw (443) 4/6 6/8 8/11 10/14 12/17 13/19 15/21 18/25 19/26
Throw (444) 4 6 8 10 12 13 15 18 19
12”
Ak .70″ Cfm 180 275 350 430 510 580 650 780 920
Ps 0.012 0.024 0.040 0.059 0.082 0.110 0.142 0.195 0.275
Nc <20 <20 22 28 35 39 44 >45 >45
Throw (442) 8.5 11 14 17 19 23 25 26 27
Throw (443) 5/8.5 7.5/11 10/14 12/17 14/19 16/23 18/25 19/26 20/27
Throw (444) 35 7.5 10 11.5 14 16 18 19 20
14”
Ak .75″ Cfm 275 380 490 600 700 805 910 1075 1300
Ps 0.015 0.031 0.050 0.075 0.105 0.137 0.177 0.245 0.350
Nc <20 21 27 31 36 40 45 >45 >45
Throw (442) 8.5 13 16 20 24 26 27 28 29
Throw (443) 6/8.5 9/13 11/16 14/20 17/24 19/26 20/27 22/28 24/29
Throw (444) 6 9 11 14 17 19 20 22 24

 

Collar Size Neck Velocity 250 350 450 550 650 750 850 1000 1200
For Models 441, A441, 445, A445
6”
Ak .43″ Cfm 50 65 85 105 125 145 165 195 235
Ps <.01 <.01 0.014 0.021 0.029 0.036 0.046 0.065 0.094
Nc <20 <20 <20 <20 <20 23 27 31 35
Throw (441) 5.5 7 9.5 11 14 16 18 22 24
Throw (445) 4 5 6.5 8 10 11 13 15 17
7”
Ak .48″ Cfm 70 95 120 150 180 205 230 270 310
Ps <.01 0.011 0.016 0.025 0.034 0.045 0.058 0.081 0.117
Nc <20 <20 <20 <20 <20 24 28 30 33
Throw (441) 6.5 8.5 11 15 17 19 22 24 26
Throw (445) 4.5 6 8 10 12 13 16 17 19
8”
Ak .53″ Cfm 85 120 150 190 220 260 300 350 410
Ps <.01 0.012 0.019 0.029 0.040 0.054 0.070 0.098 0.140
Nc <20 <20 <20 <20 21 26 31 34 37
Throw (441) 7 10 13 16 18 21 25 29 31
Throw (445) 5 7 9.5 12 13 15 18 21 23
9”
Ak .575″ Cfm 110 155 200 245 295 330 365 450 550
Ps <.01 0.014 0.023 0.036 0.051 0.066 0.086 0.119 0.172
Nc <20 <20 <20 <20 26 31 33 37 41
Throw (441) 6 10 14 18 22 24 27 29 31
Throw (445) 7 7.5 10 13 16 17 19 20 22
10”
Ak .62″ Cfm 140 180 245 300 360 410 450 550 650
Ps <.01 0.017 0.028 0.043 0.069 0.078 0.102 0.140 0.205
Nc <20 <20 <20 22 29 35 38 42 >45
Throw (441) 9 12 16 20 24 27 30 32 34
Throw (445) 6.5 9 11 14 17 19 21 23 24
12”
Ak .70″ Cfm 190 245 350 450 530 590 660 780 920
Ps 0.012 0.024 0.040 0.059 0.082 0.110 0.142 0.195 0.275
Nc <20 <20 22 28 35 39 44 >45 >45
Throw (441) 10 13 19 25 30 32 33 34 34
Throw (445) 7.5 9 14 17 21 23 24 25 26
14”
Ak .75″ Cfm 285 375 480 590 695 800 900 1075 1275
Ps 0.015 0.031 0.050 0.075 0.105 0.137 0.177 0.245 0.350
Nc <20 21 27 31 36 40 45 >45 >45
Throw (441) 8 13 22 26 28 30 31 32 33
Throw (445) 6 10 16 20 22 24 26 28 30

Note: A bullet (•) next to the description signifies a product that is normally in stock.