$7.98reference price
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Making a permanently sealed splice in a submersible well pump cable (2, 3, or 4 wires, #10 to #14 AWG) with the drop cable, so the joint stays protected from water for years inside the well.
It's a kit of 4 heat-shrink tubes with internal adhesive and copper connectors, built to join two electrical cables and permanently seal that joint against water — like a bandage that shrinks with heat instead of glue, closing airtight around the splice, built to stay submerged inside the well, not just rained on.
You're replacing the Red Lion in this catalog (or any other deep-well submersible pump) and the motor's factory cable doesn't reach the junction box at the surface — with this kit you splice that cable to a new length of drop cable, sealed so it can go back down the well without moisture ruining the joint within the first year.
A well driller or plumber who installs and repairs well pumps for multiple customers always carries one in the toolbox — every new install or motor swap involves at least one splice, and it's far cheaper to carry this $7.98 kit in the truck than to pull an entire pump back out of the well months later because ordinary electrical tape came loose underwater.
Compared to a quick wrap of ordinary electrical tape, which costs pennies, this kit costs a little more but fixes the actual problem: tape loosens under the constant moisture inside a well, and when a splice fails the usual sign is the pump just "stops working on its own" with no real mechanical fault — forcing you to pull the entire drop pipe back out of the well to check it, labor that costs far more than this kit's $7.98. For a deep-well pump like the Red Lion in this catalog ($468.69), installed dozens of feet down where nobody is going to check the splice again, a proper heat-shrink seal isn't an extra expense — it's the difference between an install that lasts for years and one you end up pulling back out soon after.
Tuhorse — Heat-Shrink Splice Kit for Submersible Well Pump Cable (4-Wire, #10/#12/#14 AWG)
$7.98reference price
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So you can use the right vocabulary with a customer, a supplier, or a manual.
This is a drainage/removal pump (built to empty pools, basements, or wells), not a constant-pressure pump for sprinklers. It works well for lifting water from a cistern or well into the rest of the system, but if you need steady, sustained pressure for several sprinklers running at once, the surface pump below is better suited for that.
A centrifugal/jet surface pump, self-priming with a cast-iron body, specifically marketed for lawn sprinklers and garden irrigation — unlike the submersible pump above, it's built to deliver constant pressure, not just move water from one point to another. It's noticeably more expensive; it makes sense if your system genuinely needs extra pressure (check your mains pressure first before investing here).
A diaphragm pump (not centrifugal like the surface pump in this ranking) — it starts and stops on its own via a built-in pressure switch, on demand. Unlike the submersible (drainage) and self-priming surface pump (constant pressure for multiple sprinklers), this is a lightweight, portable booster for a single hose or low-pressure watering point: 4.0 GPM, 50 PSI, 110V AC. It includes garden hose adapters.
