Undersink Water Filter Replacement Parts


Replacement parts for undersink water filters, including filter housings, brackets, faucets, fittings, tubings and more.


If you have trouble identifying the parts for your unit, or if you aren't sure if a part will work for you, please give us a call or email for advice.

Filter cartridges should also be changed regularly (about once a year). We have a separate catalog for those.

Index

Recommended Parts

We recommend the following parts with any undersink order.

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.

$4.00
Part # wr001

Fits standard Flowmatic filter housings for 2.5" width cartridges. Used in our Countertop Filters, Undersink Filters, Reverse Osmosis units, and standard sized Garden Hose Filters.

$2.00
Part # or001

A small amount of silicone grease should be applied lightly to o-rings during cartridge changes to ensure years of leak-free use. This small packet will lube many o-rings.

$1.50
Part # aa201

Housings & Brackets

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

$23.00
Part # fh001

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

$23.00
Part # fh002

Standard filter housing for 2.5" x 9.75" cartridges. 3/8" NPT threaded ports.

$23.00
Part # fh008

Aluminum mounting bracket with eight screws: four for attaching the filter housing to the mounting bracket and four for attaching the bracket to a wall.

$6.50
Part # mb500

Aluminum mounting bracket with ten screws: eight for attaching the filter housing to the mounting bracket and two for attaching the bracket to a wall.

$19.00
Part # mb504

Aluminum mounting bracket with fourteen screws: twelve for attaching the filter housing to the mounting bracket and two for attaching the bracket to a wall.

$24.00
Part # mb505

Faucets

The faucets below are available in a variety of colors and finishes from our complete faucet catalog.

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.

$38.00
Part # lf700

Tomlinson's beautiful “Value” Contemporary ledge faucet is a zinc alloy light-bodied version of the top-of-the-line Contemporary style. It has an easy operating 1/4 turn handle. The spout swivels 360 degrees. Easy to install with preinstalled 1/4" tubing.

$43.00
Part # lf702

The Tomlinson Designer Faucet is an elegant faucet of superior quality that's designed for years of service. This unique faucet, which uses a quarter turn ceramic disc valve, is as functional as it is beautiful.

$99.00
Part # lf710

Tomlinson Contemporary Faucet, Polished Chrome

$109.00
Part # lf711

Inlet Kits

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.)

$16.00
Part # iv100

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.

$16.00
Part # iv103

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.

$16.00
Part # iv101

Screws, Tubing, and Valves

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.

$1.00
Part # mb905

1/4" NPT male threading. Joins two filter housings (e.g., can be used to create a double filter from a single filter.) This is a high quality QMP nipple with o-ring seals to prevent leaks.

$3.00
Part # cp008

3/8" NPT male threading. Joins two filter housings (e.g., can be used to create a double filter from a single filter.)

$3.00
Part # cp009

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

$0.15
Part # tb001

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

$0.25
Part # tb004

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

$6.00
Part # jg039

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

$7.00
Part # jg040

Braided stainless steel supply line for connecting a 3/8" male compression fitting (eg., a cold water valve) to a 3/8" male compression fitting.

$7.25
Part # aa206

Braided stainless steel supply line for connecting a 3/8" male compression fitting (eg., a cold water valve) to a 3/8" male compression fitting.

$7.25
Part # aa207

Braided stainless steel supply line for connecting a cold water valve or a Simple Undersink Filter to a standard faucet stem with 1/2" connection.

$7.25
Part # aa208

Brass elbow with 3/8" compression threading by 3/8" male NPT.

$3.50
Part # ft600

Brass connector with 3/8" compression threading by 3/8" male NPT.

$2.25
Part # ft601

Accessories

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.

$14.00
Part # rc800

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