Shurflo Aqua King II Supreme 12V Water Pump, 5.0 GPM
- Brand:
- Shurflo
- Part no:
- 4158-153-E75
Image: Fisheries Supply
Where to buy
Specifications
- Pressure
- 55 psi
- Voltage
- 12V
- Current draw
- 15 A
- Port size
- 1/2" NPS Male
The Shurflo Aqua King II Supreme is a 12 V demand water pump rated at 5.0 gpm and 55 psi, meant for boats with several fixtures. It is self-priming to 6 ft and has a built-in check valve. A mechanical bypass lets it vary flow with demand without an accumulator tank, and it can run dry without damage. An inlet strainer and 1/2 in hose barb fittings are included, and the maker gives a 3 year warranty.
Our take
Run-dry tolerance and the built-in mechanical bypass are the practical points on this 5.0 gpm, 55 psi pump: it can run dry without damage and varies flow without an accumulator tank. The maker rates it for intermittent duty, as with demand pumps generally.
From our buying guide
Size a freshwater pump by the outlets that must run at once. Jabsco's rule of thumb is 1 GPM per outlet, and the listed flow is open flow, which falls as pressure rises.
Check before you buy:
- The data sheet shows flow at pressure. One Shurflo gives 4.0 GPM at 0 psi and 2.0 GPM at 40 psi.
- You have an inlet strainer, which Jabsco says is required in every freshwater pump installation.
- An accumulator suits the pump. Jabsco says one cuts cycling on a pressure-switch system, and not to use its accumulators with variable-speed pumps.