Hon&Guan’s TurboFlow Snap 4 is a 4-inch mixed-flow inline duct fan designed for small ventilation runs in grow tents and equipment enclosures. This US-plug 110 V model is rated at 100 CFM and draws up to 38 W, with a nominal speed of 2600 RPM and an approximate noise level of 31 dB. The detachable housing simplifies cleaning and installation, and the ball-bearing motor is specified for up to 50,000 hours of service life. Two wiring modes allow low or high speed, with high as the default. The compact body measures about 5.5 × 6.5 × 9.7 inches and mates to standard 4-inch (100 mm) ducting for intake or exhaust use.