The first stage is a Carbon filter removes chlorine which could damage the Reverse Osmosis Membrane. A good quality Carbon Block filter will also remove sediment up to 10 microns and last for 15,000 gallons or more.
The second stage is a sediment filter, preferably a 100% Pure POLYPROPYLENE Microfiber, pleated, 5-micron sediment filter. They are a little more expensive than cheaper “paper filters” but the added protection and increase lifespan are worth the extra money.
The third stage is the Reverse Osmosis Membrane. Not all membranes are created equal. Do yourself a solid and buy a quality membrane. The Dow Filmtec Membranes are the original industry standard. Most home systems are equipped with a Filmtec TW30-1812 50 GPD Reverse Osmosis Membrane.
The fourth stage is the post membrane, Carbon Block filter. The purified drinking water travels from here to the Storage Tank / Spigot and Refrigerator Ice Maker / Drinking water is
The hard part is getting past the creative marketing and knowing what to buy. You can’t go to your local box chain retailer and necessarily get quality components. They’re going to sell you what there preferred vendor has supplied them.
We’ve done the research for you and picked the best quality, highest rated, Amazon Prime, products for you. We’re continually updating existing products and adding new ones. So check back regularly and be sure to share this website with friends and family. Thank you!
¼” Quick Connect Fitting Fits Standard Tubing Used on Most RO Systems. Zero-Leak Connections. Push-Fit Technology. Quick Disconnection Without Other Tools. Suitable For Use In Hot and Cold Water Applications.
Connects any RO system to an additional dispension location. Assists in delivering crystal clear ice cubes and great tasting RO water to your fridge. Kit includes 16 feet 1/4″ tubing, a 1/4″ x 1/4″ x 1/4″ “T” valve,a 1/2 inch to 1/4 inch male/female quick connect, an inline 1/4″ x 1/4″ shut off valve, and a compression fitting set, tested by independent third-party to meet NSF/ANSI Standard. Compatible with reverse osmosis systems and water filter systems with standard 1/4″ tubing. Push-in quick connect fittings offer easy DIY installation with no tools required.
Lemoy Fridge Connection and Ice Maker Kit for Reverse Osmosis Water Systems, 16 feet 1/4 inch Tubing with 1/4 inch Push-In and Compression Fittings (blue)
Brand: Apex Pre-pressurized 4 gallon water storage tank (holds up to 3.2 gallon of water). Discharge efficiently in a vertical or horizontal position with tank stand. FDA approved food Grade bladder and certified to ensure quality, safety and durability. Inlet/outlet connection: 1/4 inch male pipe thread. Special designed for ro application
APEC TANK-4 4 gallon Residential Pre-Pressurized Reverse Osmosis Water Storage Tank
Brand: John Guest Two-way divider with three openings for connecting and branching three pipes. Accepts nylon and polyurethane tube fittings. Made of acetal copolymer plastic for low moisture absorption and high tensile and flexural strength. Working pressure of up to 150 psi. Meets NSF/ANSI standards 14, 51, and 61 for quality assurance.
John Guest Acetal Copolymer Tube Fitting, Two-Way Divider, 1/4″ Tube OD (Pack of 10)
What Size Membrane to Re-Order? The 50 GPD reverse osmosis membrane is the most popular size for home reverse osmosis systems. When replacing the membrane it is also recommended that you replace the Flow Restrictor.
TW30-1812-50 Dow Filmtec 50 gpd TFC Replacement Membrane for Undersink Reverse Osmosis (RO) System
Brand: Filmtec Polyamide Thin-Film Composite (TFC) Rated at 50 psi and purifies about 20% more water than elements rated at 60 psi Shipped dry for convenient and a long shelf life Free Chlorine Tolerance: <0.1 ppmDow genuine membrane element, NSF/ANSI Standard 58 certified
Brand: John guest. Push-fit technology provides a simple, reliable, leak-free connection. Manufactured from White polypropylene and equipped with EPDM o-rings. Can be used with plastic or soft Copper tubing Lead-free, corrosion free, non-toxic, and more chemically resistant than other plastics. Manufactured with FDA compliant materials and NSF 61 and 51 certified
1/4″ OD Polyproplyene Push-to-Connect Union Tee (10-Pack)
Brand: John Guest. Union straight connector for connecting and disconnecting two inline pipes more easily than couplings. Accepts nylon and polyurethane tube fittings. Made of acetal copolymer plastic for low moisture absorption and high tensile and flex strength. Working pressure of up to 150 psi. Meets NSF/ANSI standards 14, 51, and 61 for quality assurance.
Acetal Copolymer Tube Fitting, Union Straight Connector, 1/4″ Tube OD (Pack of 10)
Plastic quick fitting straight inline shut off Ball valve Hand valve for tubing OD 1/4″x 1/4″used for RO system refrigerator ice maker.
Brand: John Guest. Push-to-connect technology provides a simple, reliable, leak-free connection Manufactured from white polypropylene and equipped with EPDM O-rings. Can be used with plastic or soft copper tubing. Lead-free, corrosion free, non-toxic, and more chemically resistant than other plastics Manufactured with FDA compliant materials and NSF 61 and 51 certified. Provides a permanent/removable leak-proof connection, Corrosion free. Suitable for water and food applications, FDA Approved.
BRAND: Pro Water Parts 100% Pure POLYPROPYLENE Microfibers. INCREASES SURFACE AREA. LOWER PRESSURE DROP. Micron rating: 5 Micron Dimensions: 10 inch. x 2.5 inch. Lifetime: Replace two or three times a year
1-PACK Of Standard Size 5 Micron Pleated Sediment Water Filter Cartridge 10″x2.5″