The best 1 HP shallow well pump depends on the water source, electrical supply, and pressure needs. The Red Lion RJS-100-PREM is a strong match for buyers seeking a dual-voltage cast-iron pump with a stated maximum flow of 23 GPM. Acquaer is a better fit for wells up to 25 feet and includes automatic dry-run protection. Holdwell S offers an automatic pressure switch and hose adapters, while the Hrboat unit is listed as a replacement for the Red Lion model. The Aquastrong is a higher-power alternative for garden and domestic use.
| Product | Best For | Notable Feature |
|---|---|---|
| Red Lion RJS-100-PREM | General shallow-well use | 115/230V, up to 23 GPM |
| Acquaer | Wells up to 25 feet | Automatic shutoff when water runs out |
| Hrboat 602208 | Red Lion replacement shoppers | Listed as RJS-100-PREM compatible |
| Aquastrong | Garden irrigation and domestic supply | 1.6 HP motor and 5-gallon pressure tank |
| Holdwell S | Automatic pressure control | 30–50 PSI switch and hose adapters |
Red Lion RJS-100-PREM Shallow Well Jet Pump

This 1 HP pump is best for buyers who want a cast-iron shallow well jet pump with two voltage options. It can run on 115V or 230V, and its stated maximum flow is 23 GPM. The pump has a 1-1/4-inch FNPT suction intake and a 1-inch FNPT discharge outlet, details that help buyers compare plumbing connections before purchase.
The cast-iron casing and volute are paired with a glass-filled thermoplastic impeller and diffuser. A capacitor is included to provide increased starting power. Choose this model if its connection sizes and flow capacity suit the planned installation. One important limitation is that the voltage must be selected to match the incoming power source.
Acquaer 1 HP Dual-Voltage Jet Pump

Acquaer is best for buyers whose shallow well is within the listed 25-foot depth and who want an automatic protection feature. Its 1 HP motor runs on 115V or 230V, and the pump is factory set for 230V. The product description says it shuts off automatically when water inside the pump runs out, helping protect the motor during water-shortage operation.
Choose this pump if the well depth and electrical setup match its specifications and automatic shutoff is a priority. Confirm the voltage setting before connecting it; the factory setting is 230V, so it may need to be changed for a 115V supply. The listed well-depth limit is 25 feet, so it is not the right choice when the source exceeds that depth.
Hrboat 602208 1 HP Replacement Jet Pump

This cast-iron 1 HP pump is best for shoppers looking for a replacement identified as compatible with the Red Lion RJS-100-PREM. The listing describes it as a dual-voltage 115/230V model for residential water systems and light irrigation. It states a maximum flow capacity of 23 GPM and describes use with wells, tanks, or surface-water sources.
Choose this model when replacing an existing RJS-100-PREM-style pump, but compare the installation requirements and connections with the pump being removed. The 23 GPM figure is stated as a maximum under ideal conditions, so it should not be treated as a guaranteed flow rate at every installation. The supplied product details do not specify a well-depth limit.
Aquastrong Stainless Steel Garden Pump

Aquastrong is best for buyers prioritizing garden irrigation or domestic water supply who are open to a higher-power alternative rather than an exact 1 HP pump. Its motor is rated at 1.6 HP, with a stated maximum flow of 1,340 GPH, suction up to 26 feet, and maximum head of 164 feet. It includes a 5-gallon pressure tank, pressure gauge, and automatic pressure switch that starts at 20 PSI and stops at 40 PSI.
The stainless steel housing and temperature-sensing overload stop are additional listed features. Choose it if the integrated tank and automatic operation fit the planned setup. Avoid it if the requirement is specifically a 1 HP unit: this model is rated at 1.6 HP. Its listed flow is in GPH, not GPM, so compare units carefully.
Holdwell S 1 HP Automatic Pressure Pump

Holdwell S is best for buyers who want a 1 HP pump with an automatic pressure switch and included hose adapters. The listing gives a maximum flow of 1,320 GPH, a maximum suction lift of 26 feet, and a maximum head of 164 feet. Its switch is described as operating within 30–50 PSI and coordinating pump start and stop with the water valve.
Choose this model when those pressure and lift specifications suit the water system and hose adapters are useful. The instructions say to fill the water inlet completely until water flows from the drain port before use. They also advise draining the pump completely after use if it will not be used frequently. Do not assume the maximum flow or head will occur simultaneously.
Buying Guide: How To Choose A 1 HP Shallow Well Pump
How deep is the water source?
Check the product’s stated suction or well-depth limit against the actual installation. Acquaer lists wells up to 25 feet; Aquastrong and Holdwell S list suction up to 26 feet. Red Lion and Hrboat do not provide a depth limit in the supplied details. Do not infer that a pump is suitable for a deeper source just because it has a 1 HP motor.
Does the voltage match the power supply?
Compare the pump’s voltage options with the circuit available at the installation. Red Lion and Acquaer list 115V/230V operation. Acquaer is factory set to 230V, and Red Lion requires selecting the voltage to match incoming power. The listed Holdwell S and Aquastrong models are 115V. Check the product instructions before wiring.
Do you need an integrated pressure system?
A pump with an automatic pressure switch can start and stop in response to water demand. Aquastrong includes a 5-gallon tank, gauge, and 20–40 PSI switch. Holdwell S lists a 30–50 PSI switch and a gauge. Red Lion, Acquaer, and Hrboat’s supplied details do not describe an included pressure tank, so compare what the rest of the water system requires.
How should flow figures be compared?
Read maximum flow as a stated upper figure, not a promise for every well or plumbing layout. Red Lion and Hrboat list up to 23 GPM. Aquastrong and Holdwell S list flow in GPH, so convert units when comparing: 60 GPH equals 1 GPM. Actual flow depends on the operating conditions, which are not fully specified in these product descriptions.
Frequently Asked Questions
What does a shallow well pump do?
A shallow well jet pump moves water from a relatively shallow source into a home, irrigation setup, or other water system. Verify the pump’s listed suction limit for the specific source.
Is a 1 HP pump always the best choice?
No. Motor horsepower is only one factor. Compare the well depth, required flow, voltage, pressure arrangement, and plumbing connections with the pump specifications.
Can a dual-voltage pump use either 115V or 230V?
Red Lion and Acquaer list both voltage options. The selected setting must match the electrical supply; Acquaer is factory set to 230V.
Which listed pump includes a pressure tank?
Aquastrong’s product description specifies a compact 5-gallon pressure tank. Holdwell S lists a pressure switch and gauge but does not specify an included tank.
What should I check before replacing an existing pump?
Compare voltage, suction and discharge connections, pressure-system requirements, and source depth. Hrboat identifies its 602208 model as a replacement compatible with the Red Lion RJS-100-PREM, but buyers should still verify the installation details.