Shurflo’s NEW series 4138 Aquaking 2 automatic freshwater pressure pumps are 4 chamber 3 gallon per minute (11.3 LPM) pumps with pressure up to 55 PSI for multi-fixture applications of up to 3 outlets - shower, galley Etc.
The quad design gives very low noise and the built-in adjustable by-pass valve gives top performance and smooth flow without rapid pump cycling and without the need for an accumulator.
These pumps have 1/2” male thread NPT ports and include 2 x 1/2” (12mm) straight hose barb fittings.
- Smooth flow 4 chamber co-moulded diaphragm
- 3 GPM (11.3 LPM) flow with 55 PSI shut-off pressure
- Very quiet operation and no rapid cycling
- Corrosion resistant seamless electro-coated motor casing
- Self priming to 1.8 metres (6 ft) vertical lift
- Sealed pressure switch unit and motor casing
- Ignition protection and thermal overload protection
- Santoprene Diaphragm with EPDM valves & seals
- Can run dry for periods without damage
Spare parts available too.
Use ONLY Shurflo genuine swivel hose fittings. Don't use thread tape.
| Part Number | Voltage/Amps | Fittings Included | Litres Per Minute | Self-Priming Distance |
|---|---|---|---|---|
| RWB-5904 | 12v 6.5amp | 2 x 12mm Barbed Straight Hose | 11.3LPM (3GPM) | 1.8m (6ft) |
| RWB-5906 | 24v 3.8 amp | 2 x 12mm Barbed Straight Hose | 11.3LPM (3GPM) | 1.8m (6ft) |
