Shallow well jet · Red Lion

Red Lion RL-SWJ50 Shallow Well Jet Pump

A 1/2 HP jet pump with dry-run protection

Updated October 2026

Quick verdict

A smart pick for wells that can run low.

Strength
Low-pressure cut-off included.
Trade-off
Shallow wells only.
Right buyer
Seasonal or low-yield shallow wells.
Horsepower
1/2 HP
Max flow (maker)
12.6 GPM
Housing
cast iron
Voltage
115 V
Power source
Corded Electric
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Why it matters

The RL-SWJ50 bundle adds an M4-type low-pressure cut-off switch to Red Lion's 1/2 HP cast iron jet pump. If pressure drops 10 psi, as happens when the well runs dry, it shuts the pump off before it damages itself.

The pump delivers 12.6 GPM at 30 psi, runs on 115 or 230 V (factory set to 230 V) and self-primes after the first prime.

Who it's for, and who should skip it

Good fit if

  • Wells that can run low
  • Seasonal cabins
  • Wells under 25 ft

Look elsewhere if

  • Wells deeper than about 25 ft
  • Homes without a pressure tank
  • Owners who won't prime the pump

Pros and cons

Pros

  • Low-pressure cut-off
  • Dual voltage
  • Self-priming after first prime

Cons

  • 1/2 HP flow
  • Factory set to 230 V
  • Shallow wells only

Limitations to weigh

  • Check whether your circuit is 115 V or 230 V before ordering; many well pumps are wired for 230 V.
  • Prime the pump casing with water before the first start; jet pumps can't lift water until they're primed.

Specifications

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

MaterialCast IronRetailer
Max flow (maker)12.6 GPMRetailer
Voltage115 VRetailer
Horsepower1/2 HPRetailer
Housingcast ironRetailer

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Final verdict

Worth it where the well might run dry.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

What does the low-pressure cut-off do?
It stops the pump if pressure falls 10 psi, protecting it from running dry.
How much flow?
12.6 GPM at 30 psi.