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SunPumps Submersible Diaphragm Pump -12/24VDC (SDS-D-128)


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The original low-voltage submersible diaphragm pump designed to run on renewable energy.

SKU: SDS-D-128

SunPumps Submersible Diaphragm Pump -12/24VDC (SDS-D-128)

The SunPumps SDS-D-128 submersible diaphragm pump is a high-efficiency, low-voltage DC positive displacement pump designed for water delivery in remote locations. As such, it is built to run on a range of DC voltages (12-30VDC) supplied from off-grid power sources including solar panels, wind generators, batteries, or a combination of the three. The SDS-D series from SunPumps was the first submersible diaphragm pump introduced to the solar market in 1988, and has an excellent performance record.

This pump is easily installed by hand without any special equipment, and includes a double shrink splice kit and a ½" poly pipe compression fitting.

SunPumps SDS-D-128 Submersible Diaphragm Pump Specs

  • 10.75" L x 3.8" diameter (fits 4" well casings and larger)
  • 14 lbs
  • Max flow: 1.5 gpm
  • Max lift: 230'
  • Port: ½" NPT
  • 12-30 VDC
  • Max power: 100 Watts
  • Max current: 3.3 amps
  • Manufacturer: SunPumps
  • Model number: SDS-D-128

This product is shipped from one of our warehouses in Northern California. Orders placed after 12 p.m. will typically ship the following business day. Click here to see an estimate of our delivery times with standard FedEx Ground shipping.

Returns & Replacements
Regularly stocked, non-special-ordered, and non-custom-built items can be returned for a refund within 30 days of receipt if unused and in original packaging. Returns of solar panels, inverters or other large ticket items will incur a re-stocking fee of up to 30%. Freight shipping is non-refundable.

For more, please read our full return policy.

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