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Proline EZ SYS-550EZ

Reverse osmosis system

Proline EZ SYS-PROLINE-550EZ RO Compatible Replacement Filters

Find compatible replacement filters for your Proline EZ 550EZ 5-stage Reverse Osmosis system here. These high-quality aftermarket filters and parts for the Proline 550EZ will save you money and produce outstanding drinking water. This Proline RO system uses a sediment pre-filter and 2 carbon block pre-filters to reduce sediment, chlorine and chlorine by-products before the membrane filters out impurities larger than .001 microns. The granular activated carbon (GAC) post filter treats for taste and odor. The TFC RO membrane provides 50 gallons per day.You can find and order all your filters at once in our replacement kits below.

See the replacement schedule

Compatible parts

Everything that fits the Proline EZ SYS-550EZ

Ready Water RW-SED2510050 5-micron sediment filter, direct replacement for 93023 and PX05-9 7/8
Ready Water
Ready Water RW-SED2510050 Sediment Filter 5 Micron 2.5" x 10"
(89)
$8.99$12.99
Meets FDA requirements for food and beverage contact
Omnipure OMB934-5m 5-micron carbon block filter for standard 10-inch water filter housings
Omnipure
Omnipure OMB934-5m Carbon Block Filter 5 Micron 2.5" x 10"
(83)
$14.99$18.74
Reduces chlorine, taste and odor
NSF Certified performance
USA made compression molded
2.5" Drop-in carbon block element
AXEON TF - 1812 - 50 Reverse Osmosis Membrane 50 GPD 200359 200359 - ESP Water
AXEON
AXEON TF-1812-50 Reverse Osmosis Membrane 50 GPD 200359
(10)
$44.49$53.64
Thin Film Composite (TFC)
Omnipure CL10ROT33-BB 5-micron inline GAC carbon filter with 1/4-inch female threads
Omnipure
Omnipure CL10ROT33 Inline Carbon Filter GAC 5 Mic 2" x 10"
(62)
$12.99$16.24
Reduces chlorine, taste and odor
NSF 42 Certified
Select an option
Proline Plus YS-PROPLUS replacement filter kit with sediment and carbon filters, RO membrane sold separately
ESP Water
Proline Plus 5-Stage RO Filter Kit – Without Membrane
(32)
$51.96
Proline Plus compatible reverse osmosis filter kit with 50 GPD membrane
ESP Water
Proline Plus 5-Stage RO Filter Kit with 50 GPD Membrane
(74)
$96.45

Replacement filter info

Your replacement schedule

Each stage of the Proline EZ SYS-550EZ, the exact part that fits it, and when to change it.

  1. Stage 1: Sediment filter

    Part RW-SED2510050, Ready Water RW-SED2510050 Sediment Filter 5 Micron 2.5" x 10" $8.99

    Every 6–12 months

  2. Stages 2 to 3: Carbon block filter × 2

    Part OMB934-5m, Omnipure OMB934-5m Carbon Block Filter 5 Micron 2.5" x 10" $14.99 each

    Every 6–12 months

  3. Stage 4: RO membrane

    Part 200359, AXEON TF-1812-50 Reverse Osmosis Membrane 50 GPD 200359 $44.49

    Every 2 years

  4. Stage 5: Post carbon filter

    Part CL10ROT33-BB, Omnipure CL10ROT33 Inline Carbon Filter GAC 5 Mic 2" x 10" $12.99

    Every 6–12 months

  5. Kit: Filter kit, without membrane

    Part YS-PROPLUS, Proline Plus 5-Stage RO Filter Kit – Without Membrane $51.96

    Every filter except the membrane

  6. Kit: Filter kit, all stages

    Part YSM-PROPLUS, Proline Plus 5-Stage RO Filter Kit with 50 GPD Membrane $96.45

    Every filter and the membrane in one box

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