Blue Thumb 115v Low RPM External Pump ShinMaywa Recommendations Perform regular water changes

Recommendations Perform regular water changes to keep alkalinity (acid-neutralizing capacity) and pH stable

You get the safety and convenience of self-priming along with great energy savings

Pellet Size: 5mm

100 pound load rating (more when using concrete blocks or other props)

Heavy duty cast iron and stainless steel housing for durability

Blue Thumb 115v Low RPM External Pump ShinMaywa Recommendations Perform regular water changesBlue Thumb 115v Low RPM External Pump The Blue Thumb External Pump advances the high efficiency and self priming advantages of other external pump models. Designed for quiet operation and enhanced performance the external pumps have 3 ports and a large capacity strainer basket. Quick connect fittings included with each pump provide direct connection to 2, 2 1 2 and 3 pipe. The Blue Thumb External Pump is the pump you need for your higher flow