Standard filter housing for 2.5" x 9.75" cartridges. 1/4" NPT threaded ports.

Standard filter housing for 2.5" x 9.75" cartridges. 1/4" NPT threaded ports.

Standard reverse osmosis membrane housing. 1/8" NPT threaded ports.

Contains four #10 Screws, 3/4" long, to mount filter housing to bracket. Use this set if you are attaching a housing without a membrane clip.

Consists of four screws: Three #10 Screws, 3/4" long, and one #10 Screw 1" long. Use this packet to mount filter housing on bracket when one of the screws also holds a membrane clip.

Jaco-style fittings, nuts included. Horseshoe flow pattern with In/Out on one side and Tank/Tank on the other.

John Guest-style fittings. Horseshoe flow pattern with In/Out on one side and Tank/Tank on the other.

Jaco-style fittings, nuts included. Has straight-through flow pattern.

John Guest-style fittings. Has straight-through flow pattern.

Fits filter housings, but not membrane housings. Can also be used for inline post filters.

Fits membrane housings.

Fits filter housings and inline postfilters.

Fits membrane housings, making a straight connection rather than an elbow.

Connects three 1/4" tubes.

Connects three 3/8" tubes.

Plugs into a straight 1/4" John Guest fitting to make a swiveling elbow.

Plugs into a straight 3/8" John Guest fitting to make a swiveling elbow.

This fits most filter vessels, but not membrane housings. Can also be used for inline post filters.

This fits most membrane housings, but not filter vessels.

Fits filter housings and inline filters.

Connects three 1/4" tubes.

Connects three 3/8" tubes.

Connects two 1/4" tubes to a 1/4" female pipe thread. (Commonly used to connect tank and permeate lines to inlet of inline post filter.)

One foot of white 1/4" tubing. To order multiple feet, change quantity in shopping cart.

One foot of white 3/8" tubing. To order multiple feet, change quantity in shopping cart.

Must use with Jaco fittings. Do not use with John Guest fittings.

Must use with Jaco fittings. Do not use with John Guest fittings.

Attaches membrane housing to the filter bracket. Most RO units use two membrane clips.

Attach standard 10" or 6" post filters to the membrane housing. Two clips are normally used for a filter. A single clip will attach a Payne shutoff valve (see above) to the membrane housing.

“4-Gallon” metal reverse osmosis storage tank. This is a standard-sized undersink tank. It is 11.5" in diameter by 14.5" from the floor to the top of the valve.

Fits all standard RO tanks. Connects to 1/4" tubing.

Fits all standard RO tanks. Connects to 3/8" tubing.

Inserts into 1/4" tubing with John Guest-style quick connect fittings.

Inserts into 3/8" tubing with John Guest-style quick connect fittings.

100 millimeters per minute.

150 millimeters per minute.

200 millimeters per minute. Recommended for 18 gpd membrane.

250 millimeters per minute. Recommended for 25 gpd or 36 gpd membrane.

350 millimeters per minute. Recommended for 36 gpd membrane.

420 millimeters per minute. Recommended for 50 gpd membrane.

550 millimeters per minute. Recommended for 50 gpd or 75 gpd membrane.

800 millimeters per minute. Recommended for 75 gpd or 100 gpd membrane.

The tough but attractive Tomlinson Pro-Flo faucet is the standard faucet for all our undersink filters and reverse osmosis units. It’s a sturdy top performer that uses the proven, traditional up/down handle style.

The tough but attractive Tomlinson Pro-Flo faucet is the standard faucet for all our undersink filters and reverse osmosis units. It’s a sturdy top performer that uses the proven, traditional up/down handle style.

This valve can be used to tap into copper pipe from 3/8" to 5/8" diameter. It comes with hardware to make a standard 1/4" compression fitting, and a 1/4" John Guest faucet/refrigerator adaptor is also included. (Please tell us if you need to connect to 3/8" tubing.)

Use with 3/8" flexible water lines (typically, braided stainless steel). Connects to the lower end of the flexible line. This adapter comes with inline valve (see jg039 below) and tubing. Everything you need to connect a 1/4" inlet line.

Use with 1/2" flexible water lines (typically, braided stainless steel). Connects to the upper end of the flexible line. This adapter comes with inline valve (see jg039 below), plug-in elbow, and tubing. Everything you need to connect a 1/4" inlet line.

When installed, you can just push your 1/4" drain tubing into the fitting. If you prefer a Jaco-style fitting, let us know. The price is the same.

When installed, you can just push your 3/8" drain tubing into the fitting. If you prefer a Jaco-style fitting, let us know. The price is the same.

Use as an inlet valve, a shutoff valve for the icemaker line, or anywhere an inline valve is needed.

Use as an inlet valve, a shutoff valve for the icemaker line, or anywhere an inline valve is needed.

HMDigital TDS Tester, measures 0 to 1000 parts per million total dissolved solids. A very handy tool for reverse osmosis owners; it tells you when your membrane needs replacement. TDS Tester Discussion.

Consists of a John Guest tubing tee, a John Guest refrigerator connector, a John Guest inline valve, and enough 1/4" tubing to connect your RO unit to your refrigerator. When ordering, please tell us in the “comments” section how much tubing you'll need.

A solid plastic spanner wrench for opening and tightly closing Flowmatic 2.5" X 9.75" filter housings. Fits our Countertop Filters, Undersink Filters, Reverse Osmosis Units, and Pura UV1 units.