Kiss Patriot Multi Stage Modular Reverse Osmosis System Replacement Water Filters

Kiss Patriot Multi Stage Modular Reverse Osmosis System Replacement Water Filters

Kiss Patriot Multi Stage RO Reverse Osmosis system

Kiss Patriot Multi Stage Modular Reverse Osmosis System Replacement Water Filters

Compatible Premium Replacement Water Filters and RO Reverse Osmosis Membranes. Replacement water faucets, accumulator holding water tanks, water filter cartridges, pre filters, post filters, sediment filters, carbon block filters, GAC filters, RO membranes, O-rings, Filter Housing Spanner Wrenches, Valves, Water Pumps and reverse osmosis drinking water system replacement parts.

4 Stage:

STAGE 1 (vertical) - 5 Micron Sediment Pre Filter - Replace Every 3-6 Months

STAGE 2 (vertical) - 10 Micron Carbon Block Pre Filter - Replace Every 12 Months

STAGE 3 (horizontal) - Reverse Osmosis Membrane: Choose a membrane and matching flow restrictor below.  Replace when indicated by testing TDS (total dissolved solids)

STAGE 4 (horizontal) - GAC Inline Post Filter (granular activated carbon) - Replace Every 12 Months


See Typical RO Installation Diagram

John Guest Quick Fittings and Connector Instructions

Water Filter Connector Size Selection Guide

Water Filter Installation Guide

Water Filter Change Guide

  1. Amtrol ® RO 2 RO Replacement Water Accumulator Tank For Reverse Osmosis Systems
    Amtrol ® RO 2 RO Replacement Water Accumulator Tank For Reverse Osmosis Systems
    Amtrol ® RO 2 RO Replacement Water Tank - 2 Gallon (12 5/8"H X 8" Diameter - including base) SS Stainless Steel Connection Stem - Connection Size: 1/4" MNPT - Valve Optional
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    $69.99 Special Price $49.99 As low as $34.99
  2. Air Pressure Gauge for Reverse Osmosis Water Accumulator Tanks -1000
    Air pressure gauge for reverse osmosis water accumulator tanks
    Air pressure gauge for reverse osmosis water accumulator tanks - Specially calibrated for reverse osmosis system tanks. Scale from 1 to 20 PSI. Large scale reading over small PSI range allows optimum accuracy. Just like car tires lose air pressure, so does the bladder of your reverse osmosis water accumulator tank. Improper tank air pressure will cause your system to operate improperly. This is a must for all reverse osmosis system owners.
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    $24.99 Special Price $17.99 As low as $12.99
  3. HM Digital AP-1 AquaPro Water Quality TDS Total Dissolved Solids Tester
    HM Digital AP-1 AquaPro Water Quality TDS Total Dissolved Solids Tester
    HM Digital AP-1 AquaPro Water Quality Total Dissolved Solids Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout. HM Digital introduces its new AquaPro series, a line of handheld TDS/EC meters with a sleek design that's perfect for today's modern kitchen. The AquaPro digital water testers are the next generation for today's tech-savvy and health-conscience consumer.
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    $42.95 Special Price $29.99 As low as $20.00
  4. Inline Water Shut Off Valve-1000
    Inline Water Shut Off Valve - Great For Refrigerators And Ice Machines

    Inline Water Shut Off Valve - Great For Refrigerators, Ice Machines, reverse osmosis systems and under counter drinking water systems.  Built in quick connectors.  Very easy to install and use.

    Quick Fittings and Connector Instructions

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    $14.99 Special Price $9.99 As low as $6.99
Easy TDS Membrane Performance Calculator
See If It is Time To Replace Your Membrane

Simply enter your Feed Water TDS and RO Water TDS into the boxes above and click "Submit". The percentage of TDS Rejection will be displayed. We normally recommend membrane replacement once you drop below 75%. This may vary in areas with high TDS in the feed water.

See our selection of TDS meters under Water Tests


Be sure to check our Parts Department for important parts such as TDS Testers For Reverse Osmosis Membranes, Replacement Tanks, O-rings , Filter Housing Wrenches, Faucets, Pumps, Fittings, UV Systems and more parts for your reverse osmosis pure water filtration system.   View maintenance and servicing tips online at our Installation & Trouble shooting Guide.


* Kiss Duke Duchess ® is the registered trademark of Kiss Duke Duchess , the manufacturer of Kiss Duke Duchess ® brand water treatment equipment.  The replacement filters and membranes listed above are not manufactured or endorsed by Kiss Duke Duchess .  Rather, these filters and membranes are manufactured by other companies.  While these filters and membranes are compatible for use in Kiss Duke Duchess ® brand water treatment equipment, we make no representation as to whether using these filters and membranes is consistent with the warranty and specifications applicable to Kiss Duke Duchess ® equipment.