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440

Steel

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

440

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440

Steel