Replacement Filter Kit for 50 GPD Home RO | 5 Stage | With Membrane | Yearly Service Pack

In Stock for Immediate Shipment.
More Information

Replacement Filter Packs for Home RO Systems

Membrane and Filter Replacement Kit for 50 GPD 5 Stage RO

Following the recommended schedule to replace the water filters and RO membrane regularly ensures that you are receiving high quality water and optimum performance from your RO system.  AMI's Filter Packs take the guess-work out of scheduling and ordering replacement filters and membranes.  AMI's RFK-5-50 Filter Packs includes a complete replacement set of filters and a 50 gallon per day RO Membrane.

  • Genuine AMI RO Membrane is included.  The RO membrane is the heart of a Reverse Osmosis system, removing up to 99% of total dissolved solids and impurities from the water. AMI membranes are made in USA in an ISO 9001:2015 Certified Facility, are NSF approved, and 100% Quality and Performance tested, ensuring the highest quality home water treatment available.  
  • Take the guess-work out of scheduling and ordering replacements - Complete set of filters and membrane for the annual replacement.   Filter kit also includes a replacement instruction sheet as well as a maintenance log to help schedule and track your system maintenance.
  • Ordering Filters in Packs  gives you Substantial Savings in shipping & handling charges compared to ordering filter cartridges individually.

For Use in 50 Gallon Per Day 5 Stage Home Reverse Osmosis Systems

  • AMI Home RO AAA-505, AAA-505P, AAA-505UV
  • APEC Water ROES-50
  • Or any 5 Stage 50 GPD Home RO System with Standard Housings

Water Filter Year Kits with AMI RO Membrane
 M-T1812A50 is certified to NSF/ANSI 58 for the reduction of Arsenic, Barium, Cadmium, Chromium (Hexavalent), Chromium (Trivalent), Copper, Cysts, Turbidity, Fluoride, Lead, Radium 226/228, Selenium, and TDS.

Annual Replacements

Stage 1:  Sediment Pre-Filter H-F1005CF
Stage 2:  Carbon Pre-Filter H-F2510AC
Stage 3:  Carbon Pre-Filter H-F2510AC
Stage 4:  50 GPD RO Membrane M-T1812A50
Stage 5:  Carbon Polishing Filter H-F1032-43QC

Installation Instructions for VIQUA Point of Use Home UV System

Note on Replacement Frequency:

Our recommended replacement schedule is for relatively clean city feed water. For applications where the feed water is dirtier or has specific issues, more frequent change-outs may be required. Additionally, membrane elements may last longer (1-3 years) when used in optimal conditions.  Generally speaking, filters should be changed when there is a loss of performance or undesirable flavor.  

Related Products for use with RFK-5-50

H-R2068QC Flow Restrictor for use with 50 GPD Membranes
Membrane Housing for use with AMI Home RO Membranes
F-4ME2QC Elbow Fitting for Home RO Membrane Housing
H-V1003 Membrane Reject Check Valve

To change the daily production of your system, simply replace the membrane and the corresponding flow restrictor to the desired flow rate.


To use an AMI membrane in a system with a non-standard housing, simply replace membrane housing (and appropriate plumbing connections) with a standard housing.  

Replacement Filter Packs for Home RO Water Treatment Systems

Stage Type of Filtration Purpose Recommended Replacement Qty. Included in  Kit
1 5 Micron Sediment Filter Removes sediment, dirt, and rust from the feed water.  Prolongs the life of the downstream filters. Every 6 Months 1
2 Block Carbon Filter  Removes Chlorine, Chlorine By-Products, Bad Tastes & Odors, Turbidity (Cloudy Water). Every 6 Months 1*
3 Block Carbon Filter Additional layer of carbon filtration.  Ensures membrane is protected from chlorine damage. Every 6 Months 1*
4 RO Membrane Removes up to 99% of Total Dissolved Solids.  NSF 58 certified for the reduction of Arsenic, Barium, Cadmium, Chromium (Hexavalent), Chromium (Trivalent), Copper, Cysts, Turbidity, Fluoride, Lead, Radium 226/228, Selenium, and TDS. 1 Year 1
5 Carbon Post Filter For final taste and odor polishing from the water being delivered from the storage tank to the faucet. 1 Year 1

*1 Included for Each Stage. 2 Total in Package.  


For more information, please visit this products webpage.