Rule 4 in 235 CFM Marine In-Line Bilge Blower

The Rule 4 in in-line blower is built for high-output ventilation where compact size and efficient airflow matter. It moves 235 CFM at open flow while drawing 4.3A, helping ventilate enclosed spaces without placing an unnecessary load on the electrical system. Front and rear shaft seals plus a corrosion-resistant nickel-plated motor housing are designed to support long service life in demanding environments.

Slip-on inlet and outlet connections accept 4 in ducting, and the compact housing can be installed on a flat mounting surface. The blower operates at 13.6V DC, uses a 7A fuse, and measures 102 x 152 x 106 mm. It is CE approved and USCG 183.410 compliant for ignition-protected operation, adding important protection for marine ventilation installations.

• Efficient high-volume airflow with quiet operation
• Sealed motor shaft helps protect against moisture
• Slip-on duct connections simplify installation
• Corrosion-resistant motor housing supports marine use

This blower is a practical choice for replacing or upgrading compact ventilation equipment on a boat. Confirm duct diameter, electrical requirements, and available mounting space before installation. Browse more Engine Parts & Maintenance for related products and compatible alternatives.