★★★★★ 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...

Commercial water filtration unit with two tall blue housings and three pressure gauges

Reverse osmosis system

RO Systems International COM-II-450S Replacement Filters

The COM-II-450S Reverse Osmosis Compact II Light Commercial System is designed to treat 450-700 gallons per day. The 3-stage system is made for light commercial applications and features filter pressure gauges to monitor water pressure throughout the system, a storage tank pressure gauge to prevent tank overflow and a motorized pump to maximize system output.

See the replacement schedule

Compatible parts

Everything that fits the RO Systems International COM-II-450S

Suez Purtrex 93047 5-micron polyspun sediment filter, 2.5 x 20 inch, for standard 20-inch housings
Suez WTS
Suez Purtrex 93047 Sediment Filter 5 Micron 2.5 x 20 in
(7)
$13.99
Meets FDA requirements for food and beverage contact
Omnipure OMB200-5m 5-micron carbon block filter, 2.5 x 20 inch
Omnipure
Omnipure OMB200-5m Carbon Block Filter 5 Micron 2.5" x 20"
(2)
$31.99
Reduces chlorine, taste and odor
NSF 42 Certified
AXEON HF1 - 4014 RO Membrane 150 PSI 600 GPD 200377 200377 - ESP Water
Free Shipping
AXEON
AXEON HF1-4014 RO Membrane 200377, 600 GPD at 150 PSI Test Pressure, Nominal 4 x 14 in
(2)
$229.00
Thin Film Membrane (TFM)
AXEON HF4-4014 600 GPD reverse osmosis membrane, 4 x 14 inch, rated at 100 PSI
Free Shipping
AXEON
AXEON HF4-4014 RO Membrane 200389, 600 GPD at 100 PSI Test Pressure, Nominal 4 x 14 in
(1)
$230.00
Thin Film Membrane (TFM)
AXEON NF4 - 4014 RO Membrane 400 GPD, 70 PSI, 4 x 14 Inches, 200410 200410 - ESP Water
Free Shipping
AXEON
AXEON NF4-4014 RO Membrane 400 GPD, 70 PSI, 4 x 14 Inches, 200410
(0)
$234.00
Thin Film Membrane (TFM)
AXEON NF3 - 4014 RO Membrane 400 GPD, 70 PSI, 4 x 14 - Inches, 200404 200404 - ESP Water
Free Shipping
AXEON
AXEON NF3-4014 RO Membrane 400 GPD, 70 PSI, 4 x 14-Inches, 200404
(0)
$234.00
Thin Film Membrane (TFM)
AXEON HF3 - 4014 RO Membrane 400 GPD 4 x 14 - Inch, 200371 200371 - ESP Water
Free Shipping
AXEON
AXEON HR3-4014 RO Membrane 200371, 400 GPD, Nominal 4 x 14 in
(0)
$244.00
Thin Film Membrane (TFM)
AXEON HF5 - 4014 RO Membrane 80 PSI 600 GPD 4" x 14" 200392 200392 - ESP Water
Free Shipping
AXEON
AXEON HF5-4014 RO Membrane 200392, 600 GPD at 80 PSI Test Pressure, Nominal 4 x 14 in
(0)
$240.00
Thin Film Membrane (TFM)
Flexwave Composite FWRO120 RO Pressure Tank 120 Gal 1 - 1/4" NPT FWRO120 - ESP Water
Flexcon
Flexcon Flexwave FWRO120 Composite RO Storage Pressure Tank, 1-1/4 in NPT
(0)
$4738.00
Certified by NSF to Standard 61
System made in the USA

Replacement filter info

Your replacement schedule

Each stage of the RO Systems International COM-II-450S, the exact part that fits it, and when to change it.

  1. Stage 1: Sediment filter

    Part 93047, Suez Purtrex 93047 Sediment Filter 5 Micron 2.5 x 20 in $13.99

    Every 6–12 months

  2. Stage 2: Carbon block filter

    Part OMB200-5m, Omnipure OMB200-5m Carbon Block Filter 5 Micron 2.5" x 20" $31.99

    Every 6–12 months

  3. Stage 3: RO membrane

    Part 200377, AXEON HF1-4014 RO Membrane 200377, 600 GPD at 150 PSI Test Pressure, Nominal 4 x 14 in $229.00

    Every 2 years

  4. Alternative for stage 3: RO membrane

    Part 200389, AXEON HF4-4014 RO Membrane 200389, 600 GPD at 100 PSI Test Pressure, Nominal 4 x 14 in $230.00

    Every 2 years

  5. Alternative for stage 3: RO membrane

    Part 200410, AXEON NF4-4014 RO Membrane 400 GPD, 70 PSI, 4 x 14 Inches, 200410 $234.00

    Every 2 years

  6. Alternative for stage 3: RO membrane

    Part 200404, AXEON NF3-4014 RO Membrane 400 GPD, 70 PSI, 4 x 14-Inches, 200404 $234.00

    Every 2 years

  7. Alternative for stage 3: RO membrane

    Part 200371, AXEON HR3-4014 RO Membrane 200371, 400 GPD, Nominal 4 x 14 in $244.00

    Every 2 years

  8. Alternative for stage 3: RO membrane

    Part 200392, AXEON HF5-4014 RO Membrane 200392, 600 GPD at 80 PSI Test Pressure, Nominal 4 x 14 in $240.00

    Every 2 years

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+