
Red Lion RL12G05-2W1V — 1/2 HP Deep Well Submersible Pump (NSF Certified for Potable Water)
4.0 ★ · 63 reviews
$468.69reference price
View on AmazonWhat is it and what's it for?
It's a pump that hangs entirely inside a narrow drilled well (4 inches wide or more), suspended by pipe and a safety cable, pushing water up from the bottom toward your house — like a diver rising with a bucket of water tied to a rope, instead of sucking it in from outside. Unlike the drainage submersibles in this same ranking (built to empty a basement or a pool), this one is certified so the water it touches is safe to drink, making it the right call when the drilled well IS the house's drinking-water source, not just an extra for the garden.
Real-world use cases
- At home: Your home has no municipal water connection and relies on a deep drilled well (deeper than 25 feet, past what a shallow-well jet pump can handle) for the tap, the shower, and irrigation — this pump hangs inside that well and lifts the water up to the house's pressure tank.
- In a business or workshop: A farm or kennel far from municipal water drills its own deep well to avoid depending on water-delivery trucks, and uses a pump like this to supply both the taps and the crop irrigation system from a single well and a single pump.
How to avoid buying the wrong one
- Measure your drilled well's diameter before buying: this pump is 3.9 inches wide and needs a well of 4 inches or more — it simply won't fit down a narrower one.
- It's a '2-wire' model (the starting mechanism is built into the pump itself, no separate control box) — '3-wire' versions in the same family do need a separate control box; don't mix up the wiring between the two.
- It doesn't include a pressure tank or pressure switch: those are separate parts you need for the system to work like a proper home well setup, so budget for them before buying just the pump.
The investment takeaway
Compared to using a cheap drainage pump to try to feed the house's tap (something that actually circulates as bad advice in DIY forums), this NSF/ANSI 372-certified Red Lion is the difference between water that's genuinely safe to drink and a real health risk — the certification isn't a marketing detail, it's the guarantee that the materials touching the water don't contaminate what eventually comes out of your faucet. For a unit that's going to hang at the bottom of a well for years with no easy access to fix it, paying for a brand with a track record and certification is far cheaper long-term than pulling the whole installation because you skimped on the wrong pump.
Field glossary
Terms you'll hear about this equipment
So you can use the right vocabulary with a customer, a supplier, or a manual.
- PSI (Pounds per Square Inch) — PSI — Libras por pulgada cuadrada
- La unidad con la que se mide la presión del agua — cuanto más alto el número, más fuerza tiene el chorro.