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SET88 Aquatec 8852 Booster pump set Solenoid ESO Pressure Switch [AQ88-SET-14]


SET88 Aquatec 8852 Booster pump set Solenoid ESO Pressure Switch

Aquatec 8852 Booster Pump Assembly for 100-200GPD RO systems (pre-wired)     MADE IN U.S.A.

Part # AQ88-SET-14  (for 1/4" tubing connections)

** Optional 3/8" connectors available.  If you need 3/8" connection solenoid valve or pressure switch it will be additional $10 charge, please let us know

**  If you want to use it for other applications that requires higher pressure 130 psi, or higher flow rate, we have different Aquatec pump for that purpose. Please email before purchasing.

** Optional 220V/50hz European plug available for special request, additional $10 charge

Why buy from FilterDirect ?

  1. Best price and best service.
  2. We offer free tech support on the pumps, setup, and its applications.
  3. We get the pumps directly from the manufacturer so they are always under warranty and most up-to-date. All brand NEW.

This water booster pump assembly is designed to be used for 100GPD to 200GPD Reverse Osmosis water systems.  It is pre-wired  so that the installation would be easy and neat.

The Pump assembly includes:

  • Pump                     Aquatec 8852-2J03-B424 pump to boost input water pressure from 40psi to 80 psi  (actual boost pressure depends on your RO system production rate and drain rate)
  • Reducer fitting:        two reducer fitting 3/8" to 1/4" ,  the pump has input/output of 3/8"
  • Transformer:           Aquatec brand transformer, 115VAC to 24VAC, 2 Amp, plug in to regular 110V electrical outlet, USA plug.
  • Pressure switch  :    to make the pump and RO system function automatically.  It turns on/off the pump and solenoid valve when RO pure water output is closed or when the pressure tank is full (pressure setting 40-55psi adjustable). 
  • Solenoid valve:        to turn off water supply when pressure switch turn it off, and turn on water when it is making water.
  • Pressure gauge:      to indicate pump output pressure
  • Instruction sheet
  • 3 feet 1/4" tubing

The pump assembly will automatically control standard residential reverse osmosis systems.  The pump turns-on to produce water into the pressure tank, and then turns off when the pressure tank is full or when storage tank pressure reaches 40 psi.

Benefits of using Booster pump for Reverse osmosis systems

·        For RO systems, an increased in input pressure means an increase in water production and water purity

·        RO systems will run more efficient, and have less drain water. Since it uses pressure switch and solenoid valve to turn on/off the water input, it can turn-on and turn-off more accurately than the mechanical auto-shut-off valve.

·        If you use large water container or open water tank, you can use float or level switches or float valves to control the operation of the pump as well.

·        The transformer included in the package is plugged into regular 110V/60HZ electrical outlet

NOTE:  The boost pressure might only boost to 60 psi when it's approaching the pump's upper limit, such as 200GPD RO system or if the drain rate is over 1000 mL/min.

NOTE:  Aquatec 8800 pump has an internal bypass mechanism it does not allow pressure to go higher than 110 psi for this model.  If you need boost pressure of higher than 110 psi, please contact us for different pump, we have pump that can go higher to 120 to 150 psi.

NOTE:  This pump assembly is not a continuous duty.  If you need to run the pump more than 4 hours, you can use a timer to turn on one hour and turn off for 1/2 hour to cool down the pump and solenoid valve, or you can put a fan to blow air into the pump assembly to cool it down.


Booster Pump:
Boost pressure If input water pressure is about 30 to 40 psi, the pump will boost pressure to about 70 to 80 psi for RO systems
Water open flow 2.6 liter per minute
Electrical: 24VAC
Connection Inlet and outlet,  3/8" quick connect, connects to 3/8" OD tubing

we also included two reducer fitting 3/8 to 1/4, so you can use 1/4" OD for input /output

Motor Permanent Magnet,  24VAC, enclosed
PUMP Diaphragm pump, 3 chamber, self-priming.  It is able to run dry

Material:  Housing







Stainless Steel
Dimension diameter = 3.5" , length = 7.5"


Solenoid valve
Type Normally Close (NC)   orifice opens when electrically energized
Electrical: 24VAC, Leads = 20 AWG
Water pressure 0 to 120 psi
Connection: two ¼”x ¼” fitting included:  connect to ¼” tubing
Mounting It has two screw holes for mounting

Material:  valve

Plastic valve body


brass outside body, stainless steel internal parts


Pressure switch
Type: Normally closed (NC)  will cut off circuit when water pressure reaches 40 psi  (adjustable + - 10 psi)
Pressure Cut off pressure at 40 psi,  maximum inlet pressure 120 psi
Connection ¼” compression ,  connect to ¼” tubing
Material Polypropylene

Electrical: leads

20 AWG, 14” long


10A, 250Volts



Input 115V/60Hz
Output 24VAC  2A
Leads 18 AWG, 4 feet


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