SunPumps' SDS-T of submersible solar-direct pumps are high-efficiency positive displacement pumps for well casings 4" and larger. Constructed of super-strong Ryton and stainless steel, these pumps are durable, corrosion-resistant, and highly economical.
At 30VDC, the SDS-T-135 can move water at up to 2.8 gallons per minute or up to 80 feet high. See the spec sheet linked below for output curves at other voltages.
The SDS-T pumps are based on SunPumps' time-tested SDS-Q series pumps, but can be installed a bit deeper and have a smaller ½" port than the SDS-Q's ¾". They operate on 12-30 VDC that can be supplied from solar panels, batteries, or other sources. These durable, versatile pumps are great for off-grid living and agriculture applications.