Jabsco 115V 4-Inch Continuous Duty Flangemount Blower

The Jabsco 115V 4-Inch Continuous Duty Flangemount Blower (part 36760-0115) moves about 250 CFM on AC power through 4-inch ducting. It is the larger AC model, made for spaces that need more airflow than a 3-inch unit can deliver. Continuous duty means it is rated to run for long periods rather than just a few minutes before starting the engine.

That makes it useful for exhausting heat from an engine room while the generator runs, or for keeping a large galley or head well ventilated. The flange mounts it to a bulkhead, and the 4-inch collars accept standard 4-inch blower hose. Its plastic housing resists corrosion and is built for marine ignition protection.

Use a dedicated AC breaker sized for the motor and keep wiring away from hot exhaust parts. A 4-inch duct carries over twice the air of a 3-inch duct, so do not reduce the hose size anywhere along the run. Clean any lint or debris from the intake and outlet a couple of times a season. Find DC blowers and other ventilation parts in boat outfitting.

• 115V AC, 4-inch ducting
• About 250 CFM
• Continuous duty rated
• Flangemount design