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The best 12V shower pump moves enough water at enough pressure: an RV diaphragm pump for a camper shower or a submersible for a tank. We compared four, from a 3.5 GPM RV pump to a 65 PSI kit, on flow, pressure and warranty.
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Quick picks
Best Overall wassermann RV Pump: 3.0 GPM, 55 PSI, 3-year warranty Check price on Amazon
Best Flow ECO-WORTHY RV Pump: 3.5 GPM, 4-chamber, 55 PSI Check price on Amazon
Best Submersible ANTARESWORLD Submersible: 2GPM, 16ft lift, German made Check price on Amazon
Best Kit CAMPLUX Pump Kit: 65 PSI, auto switch, heater match Check price on Amazon
The kits we chose
| # | Product | Solar Score | Buy |
|---|---|---|---|
| 1 | wassermann RV Pump | 9.5/10 | Buy on Amazon |
| 2 | ECO-WORTHY RV Pump | 9.5/10 | Buy on Amazon |
| 3 | ANTARESWORLD Submersible | 9.3/10 | Buy on Amazon |
| 4 | CAMPLUX Pump Kit | 9.3/10 | Buy on Amazon |
Pros
- 3.0 GPM, 55 PSI stated
- 3-year warranty
- Internal bypass technology
- Quiet operation claimed
Cons
- No certification stated
- 3.0 GPM less than ECO-WORTHY
- Accessories not detailed
- RV focus, not shower kit
Detailed Review
The wassermann is the warranty pick: a 12V RV water pump delivering 3.0 GPM at 55 PSI, with a 3-year warranty and professional service. The internal bypass reduces cycling for stable pressure.
The 3.0 GPM trails the ECO-WORTHY, but the 3-year term is the strongest here. If warranty matters, this is it.
Its Solar Score of 9.5/10 comes from performance 29/35, build 20/25, value 20/25, safety 0/10 and warranty 1/5: 70 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Flow | 3.0 GPM |
|---|---|
| Pressure | 55 PSI |
| Warranty | 3-year |
| Voltage | 12V DC |
Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. No safety listing, protection or rating is stated, so safety scores zero. 3-year warranty. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 1 of 5. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
ECO-WORTHY RV Pump
A 12V RV water pump with 4-chamber diaphragm, 3.5 GPM, 55 PSI on-demand.
Pros
- 3.5 GPM open flow stated
- 55 PSI on-demand switch
- 4-chamber diaphragm design
- Self-priming
Cons
- No warranty stated
- No certification stated
- 3.5 GPM is open flow, not rated
- RV plumbing focus, not shower kit
Detailed Review
The ECO-WORTHY is the flow pick: a 12V RV water pump with a 4-chamber diaphragm delivering up to 3.5 GPM open flow and 55 PSI on demand.
For an RV fresh water system that feeds a shower, this is the capacity leader.
Its Solar Score of 9.5/10 comes from performance 30/35, build 21/25, value 20/25, safety 0/10 and warranty 0/5: 71 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Flow | 3.5 GPM (open flow) |
|---|---|
| Pressure | 55 PSI on-demand |
| Design | 4-chamber diaphragm |
| Voltage | 12V DC |
Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. No safety listing, protection or rating is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
ANTARESWORLD Submersible
A 12V submersible pump, 2GPM, 16ft lift, made in Germany.
Pros
- Submersible design
- 2GPM, 16ft lift stated
- Made in Germany stated
- 1m power cable included
Cons
- No warranty stated
- No certification stated
- 2GPM is modest
- Submersible, not inline
Detailed Review
The ANTARESWORLD is the submersible pick: a 12V pump that drops in the tank, delivering 2GPM with 16ft of lift. All components are made in Germany, per the listing.
The submersible design suits a tank or bucket shower. If you need an inline RV pump, pick the ECO-WORTHY or wassermann.
Its Solar Score of 9.3/10 comes from performance 26/35, build 19/25, value 19/25, safety 0/10 and warranty 0/5: 64 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Type | Submersible |
|---|---|
| Flow | 2GPM |
| Lift | 16ft |
| Voltage | 12V DC |
Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. No safety listing, protection or rating is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
CAMPLUX Pump Kit
A 12V water pump kit, 1.6 GPM, 65 PSI, for campers and showers.
Pros
- 65 PSI high pressure
- Automatic pressure switch
- 12V car or battery power
- Suits CAMPLUX heaters
Cons
- No warranty stated
- 1.6 GPM is modest
- Flow capacity 1.2 GPM in spec
- No certification stated
Detailed Review
The CAMPLUX is the kit pick: a 12V water pump with 65 PSI and an automatic pressure switch, connecting to a portable power station, car supply or 12V battery. It suits the CAMPLUX gas water heaters.
Note the spec table lists 1.2 GPM flow capacity versus 1.6 GPM in the title; use the lower figure. For an off-grid shower with a heater, this is the matched set.
Its Solar Score of 9.3/10 comes from performance 24/35, build 19/25, value 18/25, safety 0/10 and warranty 0/5: 61 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Flow | 1.6 GPM (title), 1.2 GPM (spec) |
|---|---|
| Pressure | 65 PSI |
| Power | 12V DC |
| Switch | Automatic pressure |
Figures as published on the retailer listing, collected 23 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. No safety listing, protection or rating is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
As an Amazon Associate I earn from qualifying purchases.
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Numbers side by side
| Product | Solar Score | Flow | Pressure | Voltage | Warranty | Amazon |
|---|---|---|---|---|---|---|
| wassermann RV Pump | 9.5/10 | 3.0 GPM | 55 PSI | 12V | 3-year | View on Amazon |
| ECO-WORTHY RV Pump | 9.5/10 | 3.5 GPM | 55 PSI | 12V | Not stated | View on Amazon |
| ANTARESWORLD Submersible | 9.3/10 | 2GPM | Not stated | 12V | Not stated | View on Amazon |
| CAMPLUX Pump Kit | 9.3/10 | 1.6 GPM | 65 PSI | 12V | Not stated | View on Amazon |
Pump details as published on each listing, collected 23 October 2026.
Where the points went
The Solar Score weighs performance, build, value, safety and warranty. The wassermann states a warranty term; the others do not. No listing states a safety certification.
| Product | Solar Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| wassermann RV Pump | 9.5 | 29 | 20 | 20 | 0 | 1 |
| ECO-WORTHY RV Pump | 9.5 | 30 | 21 | 20 | 0 | 0 |
| ANTARESWORLD Submersible | 9.3 | 26 | 19 | 19 | 0 | 0 |
| CAMPLUX Pump Kit | 9.3 | 24 | 19 | 18 | 0 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
How to choose the best 12V shower pump
RV inline or submersible
Decide the plumbing. Inline diaphragm pumps (ECO-WORTHY, wassermann, CAMPLUX) mount in the water line with an on-demand pressure switch. Submersible pumps (ANTARESWORLD) drop in the tank. Match the pump to the system.
Flow and pressure
A shower needs both. The ECO-WORTHY leads on flow at 3.5 GPM; the CAMPLUX leads on pressure at 65 PSI. The wassermann balances both at 3.0 GPM and 55 PSI. Check whether the figure is open flow or rated.
Warranty
Only one states a term: wassermann at 3 years. A pump is a wear item, so a stated term is worth weight in the score.
Sizing Notes
Size the pump to the shower head. A 3+ GPM pump suits a standard RV shower; a 1-2 GPM pump suits a low-flow or bucket shower. The CAMPLUX’s 1.2 GPM spec figure is the one to plan around, not the 1.6 GPM title.
FAQ: power away from the grid
What GPM do I need for a shower?
A standard RV shower uses 2-3 GPM. The ECO-WORTHY (3.5 GPM) and wassermann (3.0 GPM) cover it; the CAMPLUX (1.2-1.6 GPM) suits a low-flow head.
Do these pumps need a pressure switch?
The ECO-WORTHY, wassermann and CAMPLUX have automatic on-demand switches. The ANTARESWORLD does not state one.
Can I run these from a battery?
Yes. All four are 12V DC. The CAMPLUX connects to a portable power station, car supply or 12V battery.
Which has the best warranty?
The wassermann states a 3-year warranty. The others state no term.
Related solar guides
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