
Johnson Pump
Mayfair 500GPH Cartridge Aerator Pump Straight 12V 28503
Mayfair 500GPH Cartridge Aerator Pump Straight 12V 28503
Thorne Bros - 10091 Central Ave. - PH# 763.572.3782
10091 Central Ave NE
Blaine MN 55434
United States
Fish-Lectronics - 1109 Cty. Rd. 10 - PH# 763.571.1277
1109 County Road 10
Minneapolis MN 55432
United States
Johnson Pump cartridge aerator pumps offer the ease of convenience and years of reliable service. Improved design with easy-to-install Dura-Port discharge port. Smaller profiles to fit in more confined spaces. Easy to change motor cartridge.
- Limited 3 Year Warranty
- Capacities 500 GPH
- Available in two different intake configurations: straight or 90°
- Compact, easily replaceable all-in-one motor/impeller unit
- No tools needed for maintenance
- Extremely energy efficient
- Water-cooled motor for long service intervals
- Improved design with easy-to-install Dura-Port discharge ports (straight and a 90° smooth elbow included) eliminate stress cracking caused by over-tightened hose clamps
- Meets the international standard, ISO 8849 marine