Sediment Filter, 5-Micron Polyspun Cartridge
2 1/2” dia. x 10″
STAGE TWO (optional)
Activated Carbon Block Filter 5 Micron
2 1/2” dia. x 10″
Activated Carbon Block Filter 5 Micron
2 1/2” dia. x 10″
Reverse Osmosis Membrane
36 GPD TFC @ 65 PSI Pressure Differential
Granular Activated Carbon Post-Filter
In-Line, 2” dia. x 10”
4.0 Gallon Plastic Tank (metal tank available)
Pre-pressurized with Butyl Bladder
(2.5 gal. water capacity when full)

Shipping Weight:
4-stage 32 lb.
5-stage 37 lb.
4-stage 14.5”W x 8.5”D x 18”H
5-stage 14.5”W x 8.5”D x 18”H
Tank: 11″ dia. x 15.5″H

Conditions of Use
Water Must be microbiologically safe
Temperature, 40 -100 degrees F
pH Range, 3 to 10
Feed pressure, 40 to 100 psig
Maximum TDS, 1500 PPM
Turbidity, less than 1.0 NTU

Certified Reduced Contaminants

Arsenic, Barium, Cadmium, Chromium III & VI, Copper, Cysts,
Fluoride, Lead, Nitrates, Nitrites, Radium 226 & 228, Selenium, TDS, Turbidity, Tested for structural integrity, chemical extraction and reduction of contaminants

Low Pressure Solution

Certified 4 & 5-Stage RO Systems with Booster Pump

Use a 4 or 5-stage Certified RO filter system with booster pump in low water-pressure situations (below 40-psi) found in some towns, villages, and well-water systems. The pump allows the system to run at peak efficiency by providing a pressure of 80psi to the RO membrane. It is placed after the first stage sediment filter to reduce wear from sediment. The pump motor operates at 24volts D.C. and is supplied with a step-down transformer which plugs into a standard 110-volt outlet (220 volt available). A pressure switch is located on the line to the storage tank which turns the pump OFF when the tank pressure is 40-psi and ON at 25-psi.

The 5-stage system is designed to ensure water quality, membrane performance and filter life, where the incoming water contains a high amount of sediment as in some well water systems. An extra pre-filter stage is added before the membrane. This design can also be used to extend time between filter changes.

All other specifications are the same as for the PT-4.0.

Download the 4-Stage system Brochure.

Download the 5-Stage system Brochure.

An AUTOFLUSH version is also available. Autoflush prolongs the life of the RO membrane, especially in areas with high TDS, sediment load and hardness. Each time the pump turns on, the autoflush valve opens to permit full flow to the drain for 20-seconds, flushing the inside of the membrane of any built up contaminants. This reduces plugging of the membrane and ensures efficient rejection of TDS for a longer period of time.


Comes complete and ready to install with dispensing faucet and instruction manual.

• Auto shut-off valve (conserves water)
• Flow restrictor – modified capillary
• Long-reach, non-airgap chrome faucet included
• Threaded feed-water adapter with metal ballvalve
• Drain connection included
• 1/4 inch flexible polyethylene tubing
• JACO compression fittings
• 24 VDC booster pump and tank pressure switch
• 2 year limited warranty

Ordering InformationPart No.
4-stage Certified 36 GPD RO System with pumpPT-4.0/P
5-stage Certified 36 GPD RO System with pumpPT-4.0/5/P
Available Options
with AutoFlushadd /AF
with UV Sterilizer add /UVadd /UV
with Air Gap Faucet (meets many city's requirements)add /AG
with Metal Tankadd /MT
with Quick-Connect fittings (includes 3/8" line from tank to faucet)add /QC
with 3/8" Feed Water Adapteradd /3/8FWA
with 1/2"-3/8" John Guest Convertible Feed Water Adaptercall factory
Replacement Filters
5 micron Sediment cartridge, 2.5" x 10" SF-4001
Carbon Block cartridge, 2.5" x 10" (2x 5-stage)CF-4060
GAC inline post filter, 2" x 10"IF-4103
36 GPD Replacement RO Membrane MF-4009
Certified 4-stage Filter Replacement Kit FK-100
Certified 5-stage Filter Replacement Kit FK-101
For Sales, Service or Parts, contact