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Home>Water Filter Brands>American Plumber Water Filters>American Plumber Reverse Osmosis Systems > WRO-3500


American Plumber WRO-3500 Reverse Osmosis System

3-Stage RO System

American Plumber WRO-3500 Reverse Osmosis Drinking Water System and American Plumber WRO3500 RO System
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Product Code: WRO-3500
  • American Plumber WRO-3500 Reverse Osmosis System Replacement Water Filters:
  • We distribute replacement water filters for the American Plumber WRO-3500 Reverse Osmosis System.
  • The American Plumber WRO-3500 RO System has three separate filtration stages.
  • The American Plumber WRO-3500 Reverse Osmosis System has a built-in electronic monitor. The electronic monitor beeps when the reverse osmosis membrane needs to be changed.
We distribute compatible filters for the American Plumber WRO-3500 Reverse Osmosis System.

Stage 1: D-15
Stage 2: D-20
Stage 3: ROM-230T

See the Replacements tab above for more information on each stage and the compatible filters for each stage.

These filters can be purchased below.
  • Manufacturer: American Plumber
  • American Plumber WRO-3500 Reverse Osmosis System Filtration Stages:
  • Stage 1: The D-15 5 Micron Sediment Filter Set: Removes dirt, sediment, sand, and other physical particles. Replace every 4 months depending on water quality.

  • Stage 2: The D-20 Drinking Water Filter: Reduces chlorine taste and odor that may be in your water supply. Replace every 12 months depending on water quality.

  • Stage 3: The ROM-230T RO Membrane: Reduces chemicals, such as chlorine taste and odor, that may be in your water supply. RO Membrane life up to 2 years depending on water quality.
  • American Plumber WRO-3500 RO System Parts & Accessories:
  • Order the OR-233 replacement o-rings for the three slim line reverse osmosis housing sumps. The o-rings should be replaced every couple of filter changes.
  • Order as needed the Brine O-Ring OR-033. The o-rings should be cleaned and lubricated with food grade silicon lubricant every filter change.
  • Order the o-ring lubricant to help lubricate the o-rings at each filter change.
  • Order the SW-5 wrench to help remove the housing sumps when replacing the filters. Do not use the wrench to tighten the sumps. The sumps should be hand tightened.
  • When needed, order this RO Tank to replace your existing RO Tank.
  • American Plumber WRO-3500 Water Filter Change Intervals:
  • The filter change interval will vary due to your water quality and the amount of water used.

Replacement Filters and Parts or Alternative System for the Above Unavailable Product
Culligan D-15 Under Sink Replacement Filter (2-Pack) Culligan D-15 Under Sink Replacement Filter (2-Pack)
Culligan D-20A Under Sink Replacement Water Filter Culligan D-20A Under Sink Replacement Water Filter Pentek ROM-230T / ROM-230TN Reverse Osmosis Membrane Pentek ROM-230T / ROM-230TN Reverse Osmosis Membrane Add to Cart