Ruck 6 inch Prime EVO Mixed Flow Inline Duct Fan | 421 CFM, 67W, 3-Speed

What the 6 Inch Prime EVO Gets From 67 Watts

Sixty-seven watts is a number worth sitting with. Pulling 421 CFM from a 0.6A draw at 120V is efficient for a 6 inch AC fan. The reason is a 3D-shaped mixed flow impeller turning at 3,321 RPM. Mixed flow sits between axial and centrifugal, so it holds pressure better than a booster without the bulk of a squirrel cage. The housing is injection moulded plastic, rated IPX4 and ETL listed, built in Germany.

Where a 6 Inch Mixed Flow Fan Earns Its Place

A 6 inch mixed flow fan suits a single tent running a carbon filter. Fit it at the end of the run, pulling through the filter rather than pushing into it. The three-speed switch on the casing handles day-to-day trimming without a separate controller. The limit is honest enough. This is a mid-range output for the duct size, and a heavily loaded filter on a long run will find its ceiling. Ruck publishes no sound rating for the Prime EVO line, so plan any silencing by ear rather than from a spec sheet. The bracket and a 5.5 ft cord are included, with a three-year warranty behind it.

Key Features

• 421 CFM: Mixed flow output at 67W and 0.6A on a 120V circuit.
• 3D Shaped Impeller: Blade form that holds pressure where an axial booster stalls.
• Integrated 3-Speed Switch: Fitted to the casing, so no separate controller is needed.
• 3,321 RPM Impeller: Published speed, useful for matching a silencer or duct run.
• IPX4 Plastic Housing: Corrosion-resistant and splash-rated for humid rooms.
• ETL Listed: Third-party safety certification for commercial installs.
• Mounting Bracket and 5.5 ft Cord: Hangs and plugs in without extra hardware.
• 3-Year Warranty: German-built, and covered for three years.

Technical Specifications