| 40 mm | Square | 40 mm | 176 °F | -4 °F | 12 CFM | 0.32 in H2O | 37 dB | 2 leads | Wire Leads | 2 Wire Leads | Tubeaxial | 28 mm | 24 VAC | Ball | 8800 RPM | cURus TUV | Fiberglass Reinforced PBT Polybutylene Terephthalate | 160 mA | 27 VDC | 10 VDC | 60000 Hrs | Fiberglass Reinforced Polybutylene Terephthalate (PBT) | |
| 40 mm | Square | 40 mm | 158 °F | 14 °F | 26.5 CFM | 1.6 in H2O | 57 dB | 4 leads | Wire Leads | 4 Wire Leads | Tubeaxial | 28 mm | 12 VAC | Ball | 16000 RPM | cURus TUV | Fiberglass Reinforced PBT Polybutylene Terephthalate | 800 mA | 13.2 VDC | 10.8 VDC | 50000 Hrs | Fiberglass Reinforced Polybutylene Terephthalate (PBT) | Auto Restart PWM Control Speed Sensor (Tach) |
| 40 mm | Square | 40 mm | 122 °F | 14 °F | 12 CFM | 0.32 in H2O | 37 dB | 3 | Wire Leads | 3 Wire Leads | Tubeaxial | 28 mm | 12 VAC | Sleeve | 8800 RPM | cURus TUV | Fiberglass Reinforced PBT Polybutylene Terephthalate | 0.2 A | 14 V | 7 V | 30000 Hrs | Fiberglass Reinforced Polybutylene Terephthalate (PBT) | Speed Sensor (Tach) |
| 40 mm | Square | 40 mm | 176 °F | -4 °F | 11 CFM | 0.25 in H2O | 35 dB | 3 | Wire Leads | 3 Wire Leads | Tubeaxial | 28 mm | 24 VAC | Ball | 8000 RPM | cURus TUV | Fiberglass Reinforced PBT Polybutylene Terephthalate | 120 mA | 27 VDC | 10 VDC | 60000 Hrs | Fiberglass Reinforced Polybutylene Terephthalate (PBT) | Speed Sensor (Tach) |
| 40 mm | Square | 40 mm | 122 °F | 14 °F | 12 CFM | 0.32 in H2O | 37 dB | 3 | Wire Leads | 3 Wire Leads | Tubeaxial | 28 mm | 12 VAC | Sealed Sleeve | 8800 RPM | cURus TUV | Fiberglass Reinforced PBT Polybutylene Terephthalate | 0.2 A | 14 V | 7 V | 30000 Hrs | Fiberglass Reinforced Polybutylene Terephthalate (PBT) | Locked Rotor Sensor |
| 40 mm | Square | 40 mm | 122 °F | 14 °F | 11 CFM | 0.25 in H2O | 35 dB | 2 leads | Wire Leads | 2 Wire Leads | Tubeaxial | 28 mm | 12 VAC | Sleeve | 8000 RPM | cURus TUV | Fiberglass Reinforced PBT Polybutylene Terephthalate | 0.18 A | 14 V | 7 V | 30000 Hrs | Fiberglass Reinforced Polybutylene Terephthalate (PBT) | |
| 40 mm | Square | 40 mm | 176 °F | -4 °F | 11 CFM | 0.25 in H2O | 35 dB | 2 leads | Wire Leads | 2 Wire Leads | Tubeaxial | 28 mm | 24 VAC | Ball | 8000 RPM | cURus TUV | Fiberglass Reinforced PBT Polybutylene Terephthalate | 120 mA | 27 VDC | 10 VDC | 60000 Hrs | Fiberglass Reinforced Polybutylene Terephthalate (PBT) | |
| 40 mm | Square | 40 mm | 176 °F | -4 °F | 7 CFM | 0.1 in H2O | 25 dB | 2 leads | Wire Leads | 2 Wire Leads | Tubeaxial | 28 mm | 12 VAC | Ball | 5000 RPM | cURus TUV | Fiberglass Reinforced PBT Polybutylene Terephthalate | 120 mA | 14 V | 7 V | 60000 Hrs | Fiberglass Reinforced Polybutylene Terephthalate (PBT) | |
| 40 mm | Square | 40 mm | | | | | | 2 leads | Wire Leads | 2 Wire Leads | Tubeaxial | 28 mm | 12 VAC | Ball | | cURus TUV | Fiberglass Reinforced PBT Polybutylene Terephthalate | | | | | Fiberglass Reinforced Polybutylene Terephthalate (PBT) | Auto Restart |
| 40 mm | Square | 40 mm | | | | | | 3 | Wire Leads | 3 Wire Leads | Tubeaxial | 28 mm | 12 VAC | Ball | | cURus TUV | Fiberglass Reinforced PBT Polybutylene Terephthalate | | | | | Fiberglass Reinforced Polybutylene Terephthalate (PBT) | Auto Restart Locked Rotor Sensor |