








💨 Elevate your air game—quiet, powerful, and in total control.
The CLOUDLINE PRO S4 is a 4-inch inline duct fan engineered for professional-grade ventilation in grow tents, HVAC boosters, and hydroponic setups. Featuring a whisper-quiet 28 dBA noise level, a powerful 205 CFM airflow, and an energy-efficient 21W PWM-controlled EC motor, it offers precise speed control via a 10-speed wired controller compatible with UIS systems. Its advanced mixed flow design ensures optimal performance even in high-resistance ducting, making it the go-to choice for millennial professionals seeking reliable, quiet, and efficient climate control.




| Compatible Devices | Transmission Coolers |
| Noise Level | 28 dB |
| Maximum Rotational Speed | 27000 RPM |
| Air Flow Capacity | 205 Cubic Feet Per Minute |
| Wattage | 21 watts |
| Cooling Method | Air |
| Voltage | 240 Volts (AC) |
| Item Dimensions L x W x H | 11.9"L x 6.9"W x 7.4"H |
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