Description

Replacement slim whole-house housing

Solid-blue filter housing with 3/4″ ports for standard 10″ × 2.5″ cartridges

This durable polypropylene housing is designed as a replacement component for compatible single-, dual- and triple-stage whole-house filtration systems. It accepts standard 10″ × 2.5″ slim cartridges and is interchangeable with compatible semi-clear blue housings that use the same 3/4″ port configuration.

10″ × 2.5″Standard slim cartridges
3/4″ portsInlet and outlet connections
Solid bluePolypropylene housing
Replacement partFor compatible whole-house systems

Product purpose

Replace an aging, cracked or leaking slim filter housing

Filter housings are pressure-bearing components that should be inspected regularly. Replacement is appropriate when the housing shows cracks, stress marks, thread damage, deformation or persistent leaking that is not corrected by cleaning or replacing the O-ring.

Cartridge format

Standard 10″ × 2.5″ Slim Filters

Accepts compatible sediment, GAC, CTO carbon block and specialty cartridges in the standard slim 10-inch format.

System use

Single, Dual or Triple Stage

May be used individually or as a replacement housing in compatible multi-stage systems with matching heads, brackets, ports and spacing.

Key benefits

Direct-fit replacement for many MyAquaFilter slim systems

10

Standard Slim Cartridge Fit
Accepts compatible 10″ × 2.5″ replacement cartridges.

3/4

3/4″ Inlet and Outlet
Designed for compatible whole-house systems using 3/4″ threaded ports.

PP

Durable Polypropylene Body
Solid-blue construction helps shield the cartridge from light exposure.

REP

Replacement Housing
Ideal for replacing a worn, cracked, leaking or aging housing body.

INT

Interchangeable Design
Interchanges with compatible semi-clear blue housings that use the same 3/4″ head and connection pattern.

TW

Made in Taiwan
Manufactured in Taiwan for MyAquaFilter / MyWaterClub systems.

What is included

One solid-blue replacement housing

  • One solid-blue housing body for a compatible 10″ × 2.5″ cartridge
  • Compatible 3/4″ housing-head configuration
  • Filter cartridge, bracket, wrench, O-ring, nipples, valves and installation fittings are not included unless specifically shown in the product options
Specifications

Size, materials and operating guidance

Product type Replacement whole-house filter housing
Housing color Solid blue
Housing material Polypropylene
Cartridge compatibility Standard 10″ × 2.5″ slim cartridges
Port size 3/4″ inlet and outlet
Application Compatible whole-house filtration systems
Working temperature 36–100°F
Outdoor use Avoid direct sunlight and freezing conditions
Country of origin Taiwan
Certification statement Current product page states “NSF Certified”; exact standard and scope are not identified
SKU HOUSING34B
Alternate model B892-2BKF34-PR
Listed shipping dimensions 14 × 6 × 6 in
Listed shipping weight Approximately 48 oz / 3 lb

Installation and maintenance

  • Shut off the water supply and relieve system pressure before opening the housing
  • Inspect the housing head, threads, O-ring and mating surfaces before reassembly
  • Lubricate the O-ring only with food-grade silicone lubricant when needed
  • Use suitable thread sealant on external NPT plumbing connections
  • Pressurize the system slowly and inspect all connections for leaks
  • Replace the housing immediately if cracks, bulging, stress marks or thread damage are found

Confirmed compatibility

Used in multiple MyAquaFilter and MyWaterClub systems

Compatibility requires matching 3/4″ ports, housing-head design, bolt pattern, bracket spacing and inter-housing connector alignment.

DUAL

Dual-Stage Systems

Compatible system references include MWC-DUALWHS, MWC-DUAL-B34 and MWC-DUAL-CH34.

3ST

Triple-Stage Systems

Compatible references include WHS34SET, MWC-WHS34B2, WHF-34V2, MWC-WHS342SET and WHS34-F5.

ROR

Additional Compatible Models

Also listed for ROR-2S2YFBA and ROR-2S2Y systems.

ALT

Semi-Clear Housing Alternative

Interchangeable with compatible semi-clear blue housings using the same 3/4″ port configuration.

Related replacement parts

Common parts used during housing service

OR

Replacement O-Ring

Replace a flattened, stretched, cracked or leaking housing gasket with the correct GASKET34 O-ring.

View replacement O-ring →

WR

Housing Wrench

Use the compatible slim-housing wrench to loosen the sump during cartridge replacement.

View housing wrench →

NP

Union Nipple Connector

Use the compatible 3/4″ MNPT × 3/4″ MNPT nipple with O-ring between housing heads in multi-stage systems.

View union nipple →

BR

Dual Metal Bracket

Use BR-2-SLIM when replacing the mounting bracket on a compatible two-stage slim housing system.

View dual bracket →

Before purchase

Good to know

!
Confirm the port size
This housing is for compatible 3/4″ systems and is not interchangeable with 1″ Big Blue housing heads.

!
Not a Big Blue housing
It accepts standard 10″ × 2.5″ slim cartridges, not 10″ × 4.5″ Big Blue cartridges.

!
Avoid sunlight
Direct UV exposure can accelerate plastic aging and increase the risk of premature failure.

!
Protect from freezing
Do not use where the housing or surrounding area can fall below freezing.

!
Replace aging housings proactively
The current listing recommends replacement approximately every 3–5 years, depending on pressure, water quality, environment and use.

!
Pressure protection matters
Use a pressure-limiting valve when incoming pressure may exceed the safe operating range of the complete filtration system.

This product is a replacement pressure-bearing component. Verify cartridge size, port size, housing-head compatibility, bracket spacing and operating conditions before installation. The current page states that the product is NSF certified, but the exact NSF standard, listing number and certification scope should be confirmed before using that claim in advertising.
Not sure whether HOUSING34B matches your system?
Send the system model number, housing-head photos, port size and measurements of the existing housing.

Ask a Water Filter Specialist

Additional information

Weight 48 oz
Dimensions 14 × 6 × 6 in

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