Best Water Pump for CO2 Laser (2026): 4 Compared
Four submersible water pumps for CO2 laser cooling compared: 400 to 800 GPH, lift height, wattage, nozzles and warranty from each listing.
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Top picks at a glance
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Best OverallPULACO 800GPH Pump9.6/10View on Amazon - 2
Best 800GPH ValueVIVOSUN 800GPH Pump9.5/10View on Amazon - 3
Best 550GPHGROWNEER 550GPH Pump9.4/10View on Amazon - 4
Best CompactPULACO 400GPH Pump9.4/10View on Amazon - 5
DOKO 800GPH Submersible Water Fountain Pump for PondView on Amazon - 6
95GPH 5W Mini Water Pump with 3.3 ft Tubing Submersible PumpView on Amazon - 7
VIVOSUN 2-pack 210GPH Submersible Fountain Water Pump for PondView on Amazon - 8
VIVOSUN 400GPH Submersible Fountain Water Pump for PondView on Amazon - 9
160GPH Small Submersible Water Pump with 3.3 ft Tubing 10WattView on Amazon - 10
AQUASTRONG 1 HP Sump Pump 4500 GPH Submersible Water Pump forView on Amazon
A CO2 laser tube needs steady cooling water, and the pump is what keeps it moving. The best water pump for CO2 laser use is a submersible pump with enough flow and lift for your chiller or bucket setup, running quietly for long sessions. We compared four submersible pumps by flow rate, lift height, wattage and warranty, using only what each listing publishes.
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Quick picks
- Best Overall PULACO 800GPH Pump: 800 GPH, 10 ft lift, 4 nozzles and a 12-month warranty Check price on Amazon
- Best 800GPH Value VIVOSUN 800GPH Pump: 800 GPH with adjustable flow and 3 nozzles Check price on Amazon
- Best 550GPH GROWNEER 550GPH Pump: 550 GPH at 30 watts with suction cup mounting Check price on Amazon
- Best Compact PULACO 400GPH Pump: 400 GPH at 25 watts, but the spec table contradicts the title Check price on Amazon
Large Flow: 800GPH Water Pump with 6.5 ft Tubing
800 GPH submersible pump with 10 foot lift, 45 watts, 4 nozzles and 6.5 feet of tubing, with a 12-month warranty.
Pros
- 800 GPH (3000L/H) with 10 foot max lift
- 4 nozzles (0.5"/0.63"/0.75"/1")
- 12-month warranty with 24-hour after-sales
- 6.5 feet of silicone tubing included
Cons
- No safety certification is stated
- 45 watts, not the lowest power here
- Bullets carry odd phrasing like 'relible and duarable'
- 1.5 pounds, heavier than the GROWNEER
VIVOSUN 800GPH Submersible Fountain Water Pump
800 GPH submersible pump with 10 foot lift, 50 watts, 3 nozzles and a 6.5 foot cord, with adjustable flow.
Pros
- 800 GPH (3000L/H) with 10 foot max lift
- Adjustable flow via control knob
- 3 nozzles included
- Detachable for tool-free cleaning
Cons
- No warranty term is stated
- No safety certification is stated
- 50 watts, the highest power here
- Spec table lists 24 watts against the 50-watt title
GROWNEER 550GPH Submersible Pump 30W Fountain
550 GPH submersible pump with 7.2 foot lift, 30 watts, 3 nozzles and a 5.9 foot cord, with suction cups.
Pros
- 550 GPH (2000L/H) with 7.2 foot lift
- 30 watts, energy-efficient per the listing
- 3 nozzles: 0.51, 0.62 and 0.75 inch
- 4 suction cups for vertical or horizontal mounting
Cons
- No warranty term is stated
- No safety certification is stated
- 550 GPH, less than the 800 GPH picks
- Recommends a residual current socket outdoors, not included
400GPH Submersible Pump with 5 ft Tubing 1500L/H
400 GPH submersible pump with 6.6 foot lift, 25 watts and 5 feet of tubing; the spec table contradicts the title.
Pros
- 400 GPH with 6.6 foot lift, per title and bullets
- 25 watts, the lowest power here
- 5 feet of silicone tubing included
- Adjustable flow valve
Cons
- Spec table says 50 GPH, 2.0 ft lift and 3W, contradicting the title
- No warranty term is stated
- No safety certification is stated
- 400 GPH, the lowest flow here
Other machines to compare
DOKO 800GPH Submersible Water Fountain Pump for PondCheck price on Amazon
95GPH 5W Mini Water Pump with 3.3 ft Tubing Submersible PumpCheck price on Amazon
VIVOSUN 2-pack 210GPH Submersible Fountain Water Pump for PondCheck price on Amazon
VIVOSUN 400GPH Submersible Fountain Water Pump for PondCheck price on Amazon
160GPH Small Submersible Water Pump with 3.3 ft Tubing 10WattCheck price on Amazon
AQUASTRONG 1 HP Sump Pump 4500 GPH Submersible Water Pump forCheck price on Amazon
Specs compared
| Model | HQ Score | Flow | Lift | Power | Warranty |
|---|---|---|---|---|---|
| PULACO 800GPH Pump | 9.6/10 | 800 GPH | 10 ft | 45W | 12-month |
| VIVOSUN 800GPH Pump | 9.5/10 | 800 GPH | 10 ft | 50W | Not stated |
| GROWNEER 550GPH Pump | 9.4/10 | 550 GPH | 7.2 ft | 30W | Not stated |
| PULACO 400GPH Pump | 9.4/10 | 400 GPH | 6.6 ft | 25W | Not stated |
Specifications are manufacturer rated as listed, collected 22 October 2026.
Best water pump for CO2 laser: the picks
Buying guide: water pumps for CO2 lasers
Flow rate and lift height
Flow moves the water; lift gets it to the tube. The two 800 GPH listings (PULACO and VIVOSUN) list 3000 liters per hour and a 10 foot max lift. The GROWNEER lists 550 GPH (2000 liters per hour) with a 7.2 foot lift. The PULACO 400GPH lists 400 GPH with a 6.6 foot lift in the bullets. Match the lift to the height from your reservoir to the laser; the listings note that flow drops as lift rises.
Wattage and noise
The VIVOSUN lists 50 watts, the PULACO 800GPH 45 watts, the GROWNEER 30 watts and the PULACO 400GPH 25 watts. The VIVOSUN and both PULACO listings describe quiet operation. Lower wattage saves power but the listings do not state noise in decibels, so treat quiet claims as the maker’s words. See our water cooled vs air cooled CO2 laser guide for the cooling side.
Nozzles and tubing
The PULACO 800GPH includes 4 nozzles (0.5″/0.63″/0.75″/1″) and 6.5 feet of tubing. The VIVOSUN and GROWNEER each include 3 nozzles. The PULACO 400GPH includes 5 feet of tubing. Check the nozzle sizes against your chiller or bucket fittings before ordering.
Watch the spec tables
The PULACO 400GPH spec table contradicts its own title and bullets: the table says 50 GPH, 2.0 foot lift and 3 watts, while the title and bullets say 400 GPH, 6.6 foot lift and 25 watts. Trust the title and bullets over the spec table. The VIVOSUN spec table lists “Horsepower: 24 watts” against the 50-watt title; the title figure is the one to use.
How the scores add up
The HQ Score weighs performance, build, value, safety and warranty. The PULACO 800GPH scores highest for its 800 GPH flow, 10 foot lift, 4 nozzles and stated 12-month warranty. None earns safety points because no safety certification is stated.
| Product | HQ Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| PULACO 800GPH Pump | 9.6 | 32 | 21 | 21 | 0 | 3 |
| VIVOSUN 800GPH Pump | 9.5 | 30 | 21 | 21 | 0 | 0 |
| GROWNEER 550GPH Pump | 9.4 | 28 | 20 | 20 | 0 | 0 |
| PULACO 400GPH Pump | 9.4 | 27 | 19 | 20 | 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.
FAQ: lasers and CNC
What flow rate does a CO2 laser water pump need?
The listings here range from 400 to 800 GPH. The two 800 GPH listings suit larger setups; the 400 and 550 GPH listings suit smaller ones. Match the flow to your chiller or bucket and the lift to the tube height.
Can I use an aquarium pump for a CO2 laser?
These listings are sold as aquarium and fountain pumps, and the task here is laser cooling. The listings do not mention lasers, so check the flow and lift against your laser’s cooling needs.
Do these pumps come with a warranty?
The PULACO 800GPH lists a 12-month warranty with 24-hour after-sales service. The other three listings state no warranty term.
How loud are these pumps?
The VIVOSUN and both PULACO listings describe quiet operation, but none states a decibel figure. Treat noise claims as the maker’s words.
More laser and CNC guides
See our water cooled vs air cooled CO2 laser and 30W vs 50W CO2 laser guides.
