Ruck 8 inch Classic HO Centrifugal Fan | 765 CFM, 277W, Metal Casing

Ruck 8 Inch Classic HO Moves 765 CFM on 277W

This is the loud one, and it should be chosen deliberately. 765 CFM is a serious number for an 8-inch duct, but it comes from a motor drawing 277W at 2.44A and producing 77 dB. Compare that with the standard 8-inch Classic at 527 CFM on 115W. You are paying more than double the power for a 45 percent airflow gain.

Choosing a High Output Inline Fan Over the Standard

Use it where the duct run is genuinely demanding: a long run, a heavy filter, or a room that needs fast exchange. That is a real requirement and this fan meets it. Everywhere else it is overkill that you will hear. Circuit capacity is worth checking before fitting, because that draw alongside lights and a dehumidifier adds up faster than people plan for. Brackets are fitted, the cord is 5.5 ft, and the warranty is three years. Give it its own support. Ruck's manual permits voltage regulation and forbids solid-state speed controls, so an autotransformer is the right pairing rather than a triac dimmer.

Key Features

• 765 CFM: Centrifugal output that holds up against a loaded carbon filter.
• 277W at 2.44A: Real draw at 120V, so the circuit load is easy to plan.
• 77 dB Maximum: Published sound figure, so you can plan silencing honestly.
• Backward Curved Impeller: The blade form that keeps pressure up on long duct runs.
• Powder-Coated Metal Casing: Metal rather than plastic, and corrosion-resistant in damp air.
• Incorporated Mounting Brackets: Fitted to the casing, so it hangs without extra hardware.
• 5.5 ft Power Cord: Reaches a socket or controller without an extension in most tents.
• Voltage Speed Control Only: Ruck rules out solid-state controllers, so use an autotransformer.
• 3-Year Warranty: German-built, and covered for three years.

Technical Specifications