Basic Filter Housings


These housings use the four most basic cartridge sizes. Filter housings are sold as replacement parts, with mounting brackets and wrenches sold separately.

Size #1 Housings - for 2.5" x 9.75" Cartridges

Filter Housings for 2.5
Filter Housings for 2.5" x 9.75" Cartridges

This is the standard size for most undersink filters and reverse osmosis units. Housings are Flowmatic 4200 series.

(Note: We do not recommend clear housings for inline pressure applications.)

1/4" Threaded Ports
Part # fh001
$23.00
Part # fh002
$23.00
3/8" Threaded Ports
Part # fh008
$23.00
1/2" Threaded Ports
Part # fh004
$23.00
Mounting Brackets
Price

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
Filter Wrench
Price

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

Size #2 Housings - for 2.5" X 20" Cartridges

Filter Housings for 2.5" X 20" Cartridges
Filter Housings for 2.5" X 20" Cartridges
Normally used for moderate-flow whole house units.
3/4" Threaded Ports
Mounting Bracket
Price

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.

$10.00
Part # mb501
Filter Wrenches
Price

Fits Pentek housings for 2.5" X 20" cartridges, including “Classic” Pura UV20 housings.

$4.00
Part # wr003

Fits Flowmatic 2.5" housings, as well as Pura UVB and Pura UV20 housings.

$4.00
Part # wr006

Size #3 Housings - for 4.5" X 10" Cartridges

Filter Housings for 4.5
Filter Housings for 4.5" X 10" Cartridges
Normally used for moderate-flow whole house units. Housings are Pentek “Big Blue” and “Big Clear” series.
3/4" Threaded Ports
Part # fh305
$48.00
1" Threaded Ports
Part # fh303
$48.00
Part # fh301
$98.00
Mounting Bracket
Price

High quality 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.

$45.00
Part # mb502
Filter Wrenches
Price

Fits Pentek Big Blue housings for 4.5" width cartridges, as featured in our Compact Whole House filters and “Classic” Pura UVBB filters.

$7.00
Part # wr005

Fits Pentek Big Clear housings for 4.5" X 10" cartridges.

$6.50
Part # wr004

Size #4 Housings - for 4.5" X 20" Cartridges

Filter Housings for 4.5
Filter Housings for 4.5" X 20" Cartridges
For high flow whole house units. Housings are Pentek “Big Blue” series.
1" Threaded Ports
Part # fh403
$69.00
1.5" Threaded Ports
Part # fh404
$71.00
Mounting Bracket
Price

High quality 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.

$45.00
Part # mb502
Filter Wrenches
Price

Fits Pentek Big Blue housings for 4.5" width cartridges, as featured in our Compact Whole House filters and “Classic” Pura UVBB filters.

$7.00
Part # wr005

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