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Microline reverse osmosis system with three filter housings, inline postfilter, tank and faucet

Reverse osmosis system

Microline CTA-14D 4-Stage RO Replacement Filters

This 4 stage RO system uses a sediment pre-filter to reduce sediment particles before the membrane filters out impurities larger than .001 microns. The 2 GAC post filters treat for taste and odor. 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 Microline CTA-14D

Microline S7011 5-micron sediment pre-filter, 2 x 12 inch, for compatible reverse osmosis systems
Microline
Microline S7011 Sediment Filter, 5 Micron, 2 x 11.5 in
(11)
$10.99
Also use with the Pentek RS-21SED5 and the Clack FI-S-7011
Microline S1224RS 14 GPD CTA reverse osmosis membrane
Microline
Microline S1224RS CTA Reverse Osmosis Membrane, 14 GPD
(4)
$59.00
Cellulose Triacetate Membrane
Microline S7025 GAC carbon post-filter, 2 x 12 inch, for compatible reverse osmosis systems
Microline
Microline S7025 GAC Carbon Post-Filter, 2 x 12 in
(21)
$18.99
Reduces chlorine, taste and odor
Microline S7206W - JG Inline Carbon Filter GAC 2" x 6" S7206W-JG - ESP Water
Microline
Microline S7206W-JG Inline GAC Carbon Post-Filter, 2 x 6 in, 3/8 in Quick Connect
(0)
$19.99
Reduces chlorine, taste and odor
Omnipure K2333 inline GAC carbon filter, 2 x 6 inch
Omnipure
Omnipure K2333 Inline Carbon Filter GAC T33 2" x 6"
(46)
$10.99
Reduces chlorine, taste and odor
NSF 42 Certified
Select an option
Microline CTA-14D reverse osmosis replacement filter kit with 14 GPD CTA membrane
Free Shipping
Microline
Microline CTA-14D Replacement Filter Kit with RO Membrane
(3)
$108.97
Microline CTA-14D compatible RO replacement filter kit without membrane
ESP Water
Microline CTA-14D RO Replacement Filter Kit - No Membrane
(1)
$49.97
Microline S3069 replacement O-ring for 2-3/4-inch white filter housings
Microline
Microline S3069 O-Ring for White Filter Housing, 2-3/4 in
(2)
$1.99
Microline S3072 filter housing wrench for compatible reverse osmosis filter housings
Microline
Microline S3072 Filter Housing Wrench
(1)
$7.99
42561 one-gram silicone lubricant pouch for installing O-rings, gaskets and seals
ESP Water
Silicone Lubricant 42561 1 Gram Pouch for O-Rings
(11)
$2.99
Sani-System SS25RO single-packet cleaner for reverse osmosis system maintenance
Sani-System
Sani-System SS25RO Reverse Osmosis System Sanitizer, 1 Pack
(34)
$4.99

Replacement filter info

Your replacement schedule

Each stage of the Microline CTA-14D, the exact part that fits it, and when to change it.

  1. Stage 1: Sediment filter

    Part S7011, Microline S7011 Sediment Filter, 5 Micron, 2 x 11.5 in $10.99

    Every 6–12 months

  2. Stage 2: RO membrane

    Part S1224RS, Microline S1224RS CTA Reverse Osmosis Membrane, 14 GPD $59.00

    Every 2 years

  3. Stage 3: Carbon filter (GAC)

    Part S7025, Microline S7025 GAC Carbon Post-Filter, 2 x 12 in $18.99

    Every 6–12 months

  4. Stage 4: Post carbon filter

    Part S7206W-JG, Microline S7206W-JG Inline GAC Carbon Post-Filter, 2 x 6 in, 3/8 in Quick Connect $19.99

    Every 6–12 months

  5. Alternative for stage 4: Post carbon filter

    Part K2333-KK, Omnipure K2333 Inline Carbon Filter GAC T33 2" x 6" $14.99

    Every 6–12 months

  6. Kit: Filter kit, all stages

    Part YSM-MIC14D, Microline CTA-14D Replacement Filter Kit with RO Membrane $108.97

    Every filter and the membrane in one box

  7. Kit: Filter kit, without membrane

    Part YS-MIC14D, Microline CTA-14D RO Replacement Filter Kit - No Membrane $49.97

    Every filter except the membrane

Manuals & instructions

Manuals and guides

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