| Damper Tray, Accommodates 18 In Damper installed in Roof Curb Model GPI-30 | $30.00 | | |
| Damper Tray, Accommodates 24 In Damper installed in Roof Curb Model GPI-34 | $34.00 | | |
| Damper Tray, Accommodates 30 In Damper installed in Roof Curb Model GPI-40 | $40.00 | | |
| Damper Tray, Accommodates 8 In Damper installed in Roof Curb Model GPI-17 | $16.00 | | |
| Damper Tray, Accommodates 8 In Damper installed in Roof Curb Model GPI-19 | $19.00 | | |
| DECV retrofit terminal unit 10" | $315.00 | | |
| DECV retrofit terminal unit 12" | $337.00 | | |
| DECV retrofit terminal unit 14" | $403.00 | | |
| DECV retrofit terminal unit 16" | $432.00 | | |
| DECV retrofit terminal unit 6" | $264.00 | | |
| DECV retrofit terminal unit 8" | $271.00 | | |
| Dehumidistat, 120V/3 Amp, Product # 385364 | $127.00 | | |
| Designer Filter, Model F-200, for use with Model SP A50-A390 and SP B50-B200 | $22.00 | | |
| Designer Grille, for Model SP-C50, Product # 455478 | $32.00 | | |
| DESV Controls Enclosure | $65.00 | | |
| Digital Humidity Sensor, For Models SP-A50-A390 | $90.00 | | |
| Disconnect Switch, NEMA-1, 1 Pole, Single Throw, Up to 1/2HP, 120V, Single Phase | $16.00 | | |
| Disconnect Switch, NEMA-1, 1 Pole, Single Throw, Up to 1HP, 120V, Single Phase | $22.00 | | |
| Disconnect Switch, NEMA-1, 1 Pole, Single Throw, Up to 2HP, 120V, Single Phase | $63.00 | | |
| Disconnect Switch, NEMA-1, 2 Pole, Single Throw, Up to 2HP, 200/277V, Single Phase | $29.00 | | |
| Disconnect Switch, NEMA-1, 3 Pole, Single Throw, Up to 7.5HP, 230/460V, 3 Phase | $84.00 | | |
| Disconnect Switch, NEMA-3R Weatherproof, 2 Pole, Single Throw, Up to 2HP, 120/230V, Single Phase | $156.00 | | |
| Disconnect Switch, NEMA-3R Weatherproof, 3 Pole, Single Throw, Up to 7.5HP, 230/460V, 3 Phase | $166.00 | | |
| DISPENSER FOR 1-3/4" P050 FLEX HANGER STRAP | $20.00 | | |
| Eggcrate 50F 22x10 Surface | $48.00 | | |
| Eggcrate 50F surface 10x10 | $32.00 | | |
| Eggcrate 50F surface 12x12 | $36.00 | | |
| Eggcrate 50F surface 14x10 | $38.00 | | |
| Eggcrate 50F surface 14x14 | $46.00 | | |
| Eggcrate 50F surface 16x16 | $52.00 | | |
| Eggcrate 50F surface 18x12 | $48.00 | | |
| Eggcrate 50F surface 18x18 | $63.00 | | |
| Eggcrate 50F surface 20x20 | $73.00 | | |
| Eggcrate 50F surface 22x22 | $81.00 | | |
| Eggcrate 50F surface 24x12 | $59.00 | | |
| Eggcrate 50F surface 24x24 | $131.00 | | |
