404 Results
Filters 6
Popularity Product Name Mfg. Part Number Order Number

Pressure Measurement, Test Instruments, Testing, Tools & Training, Diffusers, Air Distribution (Grilles, Sheet Metal, etc), Supplies

Dual Port Manometer and Pressure Switch Tester H27-718
Dual Port Manometer and Pressure Switch Tester
Range: -60" to +60";
Brand: Fieldpiece Mfg #: SDMN6
Catalog Pg.: 1495 View Similar Items
Dual Port Manometer H27-304
Dual Port Manometer
Range: -60" to +60";
Brand: Fieldpiece Mfg #: SDMN5
Catalog Pg.: 1495 View Similar Items
Job Link® Dual Port Manometer Probe Kit H28-647
Job Link® Dual Port Manometer Probe Kit
Description: Job Link® Dual Port Manometer Probe Kit;
Brand: Fieldpiece Mfg #: JL3KM2
Catalog Pg.: 1494 View Similar Items
421 Floor Diffusers 04 10 GS L88-167
421 Floor Diffusers 04 10 GS
Size (D x W): 4" x 10"; Color: Brown; Carton Qty.: 20;
Brand: Hart & Cooley Mfg #: 010717
Catalog Pg.: 868 View Similar Items
Gas Test Gauge R53-986
Gas Test Gauge
Size: 3/4" FPT; Range: 0 to 30 PSI;
Brand: Uniweld Mfg #: TGB30
Catalog Pg.: 388 View Similar Items
421 Floor Diffusers 04 12 GS L88-168
421 Floor Diffusers 04 12 GS
Size (D x W): 4" x 12"; Color: Brown; Carton Qty.: 20;
Brand: Hart & Cooley Mfg #: 010719
Catalog Pg.: 868 View Similar Items
Fixed Pattern Three Cone T-Bar Diffusers 08 W L88-344
Fixed Pattern Three Cone T-Bar Diffusers 08 W
Description: FPD3; Collar Size: 8"; Carton Qty.: 2;
Brand: Hart & Cooley Mfg #: 050510
Catalog Pg.: 878 View Similar Items
Gas Pressure Test Kit H24-817
Gas Pressure Test Kit
Range: 0 to 35";
Brand: Yellow Jacket Mfg #: 78060
Catalog Pg.: 387 View Similar Items
Dual Input Digital Manometer H28-244
Dual Input Digital Manometer
Description: Dual Input Digital Manometer; Range: -60" to +60";
Brand: UEi Mfg #: EM152
Catalog Pg.: 1495 View Similar Items
421 Floor Diffusers 04 10 W L88-170
421 Floor Diffusers 04 10 W
Size (D x W): 4" x 10"; Color: White; Carton Qty.: 20;
Brand: Hart & Cooley Mfg #: 010718
Catalog Pg.: 868 View Similar Items
AirTec Plastic Ceiling Diffuser L88-987
AirTec Plastic Ceiling Diffuser
Size (W x H): 8" x 8"; Carton Qty.: 4; Description: MV360 Round;
Brand: AirTec Mfg #: MV360
Catalog Pg.: 883 View Similar Items
Perforated T-Bar Diffusers L88-235
Perforated T-Bar Diffusers
Description: RENPS Perforated Steel Supply Air Diffuser; Carton Qty.: 4;
Brand: Hart & Cooley Mfg #: 050356
Catalog Pg.: 878 View Similar Items
HVS High Volume T-Bar Supply Diffusers L88-226
HVS High Volume T-Bar Supply Diffusers
Description: HVS; Collar Size: 6"–12"; Carton Qty.: 2;
Brand: Hart & Cooley Mfg #: 050350
Catalog Pg.: 879 View Similar Items
16 Round Ceiling Diffusers 06 W L88-242
16 Round Ceiling Diffusers 06 W
Size: 6"; Carton Qty.: 20;
Brand: Hart & Cooley Mfg #: 012900
Catalog Pg.: 873 View Similar Items
Egg Crate Louvers – Air Return Diffusers 2'x2'x1/2" L98-712
Egg Crate Louvers – Air Return Diffusers 2'x2'x1/2"
Description: 650-300; Size: 2' x 2' x 1/2";
Brand: Diversitech Mfg #: 650-300
Catalog Pg.: 880 View Similar Items
Dual Input Digital Manometer Kit H27-638
Dual Input Digital Manometer Kit
Range: -60" to +60", -100 to +100mBar;
Brand: UEi Mfg #: EM201SPKIT
Catalog Pg.: 1495 View Similar Items
AirTec Plastic Ceiling Diffuser L88-985
AirTec Plastic Ceiling Diffuser
Size (W x H): 8" x 8"; Carton Qty.: 4; Description: MV4 4-Way;
Brand: AirTec Mfg #: MV4
Catalog Pg.: 883 View Similar Items
Fixed Pattern Three Cone T-Bar Diffusers 06 W L88-343
Fixed Pattern Three Cone T-Bar Diffusers 06 W
Description: FPD3; Collar Size: 6"; Carton Qty.: 2;
Brand: Hart & Cooley Mfg #: 050509
Catalog Pg.: 878 View Similar Items
421 Floor Diffusers 02 12 GS L88-166
421 Floor Diffusers 02 12 GS
Size (D x W): 2" x 12"; Color: Brown; Carton Qty.: 30;
Brand: Hart & Cooley Mfg #: 010712
Catalog Pg.: 868 View Similar Items
421 Floor Diffusers 02 12 W L88-655
421 Floor Diffusers 02 12 W
Size (D x W): 2" x 12"; Color: White; Carton Qty.: 30;
Brand: Hart & Cooley Mfg #: 010713
Catalog Pg.: 868 View Similar Items
HVS High Volume T-Bar Supply Diffusers L89-214
HVS High Volume T-Bar Supply Diffusers
Description: HVS R-6; Collar Size: 6"–12"; Carton Qty.: 2;
Brand: Hart & Cooley Mfg #: 573892
Catalog Pg.: 879 View Similar Items
Floor Grille L70-066
Floor Grille
Description: 150M 2-Way; Size (D x W): 4" x 10"; Color: Brown;
Brand: TRUaire Mfg #: 150MB04X10
Catalog Pg.: 887 View Similar Items
Fixed Pattern Two Cone T-Bar Diffusers L88-232
Fixed Pattern Two Cone T-Bar Diffusers
Description: FPD Steel; Collar Size: 8"; Carton Qty.: 2;
Brand: Hart & Cooley Mfg #: 050502
Catalog Pg.: 878 View Similar Items
Floor Grille L70-076
Floor Grille
Description: 150M 2-Way; Size (D x W): 4" x 12"; Color: White;
Brand: TRUaire Mfg #: 150MW04X12
Catalog Pg.: 887 View Similar Items
FTL Finance
Powered by Site Search powered by SLI Systems

© 2025 Johnstone Supply. All rights reserved.

Select products to compare.
Compare