Automatic-Demand Diaphragm Pumps

Built-in pressure demand switch shuts pump off at maximum pressure
  • Three-chamber design provides smooth, pulse-free flow
  • Flexible diaphragm design allows pump to run dry without damage.
  • Compact — mount in any position
Model 75420-20 has an 80 psi internal bypass.
What's included: 115 VAC models include a 6-ft power cord; 12 VDC models have 6" leads.
$146.50 - $305.90USD / Each

4 variations of this product are available.

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4 PRODUCT OPTIONS
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Max Flow Rate (GPM) Wetted Materials Description
Availability Pricing
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1.4 Polypropylene, Santoprene®, Viton® Automatic-Demand Diaphragm Pump, 1.4 GPM, 60 psi; 115 VAC
$250.80USD / Each
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1.4 Polypropylene, Santoprene®, Viton® Automatic-Demand Diaphragm Pump, 1.4 GPM, 60 psi; 12 VDC
$146.50USD / Each
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1.4 Nylon, Santoprene®, Viton® Automatic-Demand Diaphragm Pump, 1.4 GPM, 100 psi; 115 VAC
$305.90USD / Each
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3 Polypropylene, Santoprene®, Viton® Automatic-Demand Diaphragm Pump, 3.0 GPM, 45 psi; 12 VDC
$166.50USD / Each
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