★★★★★ Serving 60,000+ customers with 6,200+ five star reviews.
FILTER FINDER

What system do you have?

Brand
Select your brand...
Model
Select your model...

Pentair RO-2550

Reverse osmosis system

RO-2550 RO System 4-Stage RO Replacement Filters

Pentair's Pentek four-stage reverse osmosis system uses standard, interchangeable filters. The polypropylene spun sediment pre-filter combined with the 10 micron carbon block filter help to reduce particles, chlorine taste, odor, and help extend the life of the 50 gallon per day (GPD) RO Membrane. Find these compatible parts below along with maintenance items.

See the replacement schedule

Compatible parts

Everything that fits the Pentair RO-2550

Ready Water RW-SED2510050 5-micron sediment filter, direct replacement for 93023 and PX05-9 7/8
Top Seller
Ready Water
Ready Water RW-SED2510050 Sediment Filter 5 Micron 2.5" x 10"
(89)
$8.99
Meets FDA requirements for food and beverage contact
Omnipure OMB934-10m 10-micron carbon block filter, 2.5 x 10 inch
Omnipure
Omnipure OMB934-10m Carbon Block Filter, 2.5 x 10 Inch
(32)
$13.99
Reduces chlorine, taste and odor
NSF 42 Certified
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
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
Reduces chlorine, taste and odor
NSF 42 Certified
Select an option

Replacement filter info

Your replacement schedule

Each stage of the Pentair RO-2550, 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. Stage 2: Carbon block filter

    Part OMB934-10m, Omnipure OMB934-10m Carbon Block Filter, 2.5 x 10 Inch $13.99

    Every 6–12 months

  3. Stage 3: RO membrane

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

    Every 2 years

  4. Stage 4: Post carbon filter

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

    Every 6–12 months

Manuals & instructions

Manuals and guides

Focused on What Matters

Team of Trained and
Experienced Specialists
Live US-Based
Support Team
Top Rated
Service
Free Fast Shipping
On Orders $99+