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In-Line Water Filter Housings and Casings | MojaWoda.com

In-Line Water Filter Housings and Casings

In-line water filter housings and casings are designed for building and expanding water filtration systems at the main water connection. They accommodate replaceable sediment, carbon, iron-removal, and specialist cartridges selected according to water quality. This category includes single-stage and multi-stage housings in various sizes and with different connection standards.

CALCULATE BEFORE YOU CHOOSE

Useful calculators

Check the key values before choosing a solution.

Convert inches and diameters Convert inches to mm and understand nominal sizes.
Convert inches and diameters

Inches to centimetres and millimetres

Converts the international length inch and accepts decimals, fractions and mixed numbers.

Centimetres (cm)—
Millimetres (mm)—

This does not convert nominal pipe or thread sizes.

Assumptions, scope and model version

1 in = 25.4 mm = 2.54 cm

Model version
MW-INCH-1.0
Technical basis
1 in = 25.4 mm exactly
Technical owner
NIST / MojaWoda.com
Scope
Standard length-inch conversion. Use the BSP/NPT thread calculator for pipes and fittings.
Identify BSP/NPT thread Compare thread diameter and standard before buying a fitting.
Identify BSP/NPT thread

BSP/NPT pipe-thread calculator

Compare diameter and pitch for BSPP (G) and NPT. Verify the standard before selecting a fitting.

Approximate diameter (mm)—
Approximate diameter (cm)—
Threads per inch (TPI)—
Thread pitch (mm)—
Indicative table
ThreadNPT femaleNPT maleBSP femaleBSP maleBSPP / NPT TPI
1/8≈ 8.54≈ 10.18≈ 8.57≈ 9.7328 / 27
1/4≈ 11.07≈ 13.54≈ 11.45≈ 13.1619 / 18
3/8≈ 14.49≈ 16.98≈ 14.95≈ 16.6619 / 18
1/2≈ 17.90≈ 21.14≈ 18.63≈ 20.9614 / 14
3/4≈ 23.21≈ 26.49≈ 24.12≈ 26.4414 / 14
1≈ 29.15≈ 33.14≈ 30.29≈ 33.2511 / 11.5
5/4 (1 1/4)≈ 37.87≈ 41.90≈ 38.95≈ 41.9111 / 11.5
6/4 (1 1/2)≈ 43.94≈ 47.97≈ 44.85≈ 47.8011 / 11.5

Diameters are approximate identification values, not manufacturing tolerances. BSPP (G, ISO 228-1) is parallel with a 55° profile; NPT (ASME B1.20.1) is tapered, 60°. Measure NPT at the 4th–5th full thread, without averaging different depths. BSPT (R/Rc) and NPTF require separate verification. Do not join BSP to NPT without a suitable adapter.

Assumptions, scope and model version

Diameters are approximate identification values, not manufacturing tolerances. BSPP (G, ISO 228-1) is parallel with a 55° profile; NPT (ASME B1.20.1) is tapered, 60°. Measure NPT at the 4th–5th full thread, without averaging different depths. BSPT (R/Rc) and NPTF require separate verification. Do not join BSP to NPT without a suitable adapter.

Technical source

Model version
MW-THREAD-2.0
Technical basis
Swagelok MS-13-77, pp. 13–19; ISO 228-1 / ASME B1.20.1
Technical owner
MojaWoda.com
Scope
Diameters are approximate identification values, not manufacturing tolerances. BSPP (G, ISO 228-1) is parallel with a 55° profile; NPT (ASME B1.20.1) is tapered, 60°. Measure NPT at the 4th–5th full thread, without averaging different depths. BSPT (R/Rc) and NPTF require separate verification. Do not join BSP to NPT without a suitable adapter.
Big Blue 10" filter housings Big Blue 20" filter housings

There are 22 products.

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Showing 1-22 of 22 item(s)
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Aquafilter FHPR34-B1-AQ 10" Inline Housing 3/4
★ 5.0
Reviews: 5

FHPR34-B1-AQ Aquafilter pipe body 3/4"

FHPR34-B1-AQ Aquafilter is a 10-inch, two-part housing for cold water filtration. The transparent cover facilitates monitoring the condition of the cartridge, while the head with a 3/4" brass thread ensures a durable connection. Two O-rings enhance sealing, and the air vent valve helps remove air after cartridge replacement. Max working pressure: 6 bar.
Housing standard
Slim 10″
Cartridge length
10″
Connection
3/4″
Maximum working pressure
6 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 49.18 zł
Aquafilter FHPR12-B1-AQ 1/2" Inline Pipe Housing
★ 5.0
Reviews: 5

FHPR12-B1-AQ Aquafilter pipe housing 1/2"

Aquafilter FHPR12-B1-AQ is a 10-inch, two-part inline housing for cold water filtration. The transparent cover facilitates monitoring of the cartridge's dirtiness, and the air vent valve helps remove air after replacement. The head with a 1/2" brass thread and two O-rings (face and under the head) ensure tightness. It can operate individually or in a series setup.
Housing standard
Slim 10″
Cartridge length
10″
Connection
1/2″
Maximum working pressure
6 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 51.99 zł
Aquafilter FHPR1-HP1 10" Reinforced Inline Housing
★ 5.0
Reviews: 4

FHPR1-HP1 AQUAFILTER PIPE BODY 10BAR 1"

Aquafilter FHPR1-HP1 is a reinforced, two-part 10" inline housing with a transparent cover and a brass threaded head of 1". Designed for a constant working pressure of up to 10 bar. Two O-rings enhance sealing, and the air vent valve facilitates startup after cartridge replacement. The set includes, among others, a foam cartridge FCPS5, a wrench, and a mounting plate.
Housing standard
Slim 10″
Cartridge length
10″
Connection
1″
Maximum working pressure
10 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 75.00 zł
Aquafilter BIG BLUE 20" Housing with Gauge and Vent
★ 5.0
Reviews: 4

FH20B1-B-WB Aquafilter big blue 20" filter housing

Aquafilter FH20B1-B-WB is a BIG BLUE 20" housing for cold water filtration. It consists of a bowl and a head with a 1" brass thread. It has a vent valve and a pressure gauge to monitor the level of dirt in the cartridge. It can be expanded with a second manometer (available for purchase). The set includes, among other things, a mounting plate, a wrench, and accessories.
Housing standard
Big Blue 20″
Cartridge length
20″
Connection
1″

Brand: AQUAFILTER

Free delivery within Poland
Delivery to your chosen address | 14-day returns
Price 299.00 zł
3/4" Aquafilter Inline Housing with Brass Thread
★ 5.0
Reviews: 4

3/4" Aquafilter water filter housing

Three-part Aquafilter 3/4" housing for 10" filters. The transparent cover facilitates monitoring the degree of contamination of the cartridge, and the air vent valve helps remove air after replacement. The head with a brass thread and solid construction ensure tightness and ease of use. For cold water, water from the mains, and from your own source.
Housing standard
Slim 10″
Cartridge length
10″
Connection
3/4″
Maximum working pressure
6 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 55.00 zł
Aquafilter FHPR12-HP1 1/2" Inline Housing for 10 Bar
★ 5.0
Reviews: 4

FHPR12-HP1 Aquafilter pipe housing for 10bar 1/2"

Reinforced Aquafilter FHPR12-HP1 housing for 10" cartridges with a transparent cover and a brass threaded head 1/2". Designed for a constant working pressure of up to 10 bar. Two O-rings enhance tightness, and the air vent valve facilitates startup after cartridge replacement. The set includes, among others, a wrench, mounting plate, and FCPS5 foam cartridge.
Housing standard
Slim 10″
Cartridge length
10″
Connection
1/2″
Maximum working pressure
10 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 75.00 zł
Aquafilter FHPR1-B1-AQ 10" Housing with 1" Brass Thread
★ 5.0
Reviews: 3

FHPR1-B1-AQ Aquafilter 1" pipe housing

Two-part Aquafilter FHPR1-B1-AQ housing for 10" cartridges with a transparent cover that facilitates dirt control. The head features a 1" brass thread and double sealing (2 O-rings) to maintain high tightness. The air vent valve makes it easier to start after cartridge replacement. For cold water, single or series installation. The set includes, among others, the FCPS5 cartridge, a key, and a mounting plate.
Housing standard
Slim 10″
Cartridge length
10″
Connection
1″
Maximum working pressure
6 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 65.00 zł
Aquafilter FHPR12-3V_R 10" Housing with Drain Valve
★ 5.0
Reviews: 3

FHPR12-3V_R Aquafilter housing with 1/2" valve filter

Aquafilter FHPR12-3V_R is a 10-inch cartridge housing for cold water filtration. The three-element design facilitates installation in areas with limited height, as the cover is secured with a nut. The housing features a drain valve for flushing the cartridge under pressure and an air vent to ease startup after replacement. Brass threads 1/2".
Housing standard
Slim 10″
Cartridge length
10″
Connection
1/2″
Maximum working pressure
6 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 109.00 zł
Temporarily out of stock Aquafilter FHPR1-3V_R 10" Filter Housing with Drain Valve
★ 5.0
Reviews: 3

FHPR1-3V_R Aquafilter housing with 1" valve filter

Aquafilter FHPR1-3V_R to 10" pipe housing for cold water filtration. The three-element construction facilitates handling in places with limited height, as the cap is unscrewed for cartridge replacement instead of the entire housing. The drain valve at the bottom of the housing allows for cartridge flushing under pressure, and the air vent valve helps remove air after servicing. Brass connections 1".
Housing standard
Slim 10″
Cartridge length
10″
Connection
1″
Maximum working pressure
6 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 99.00 zł
Check availability
Aquafilter BIG BLUE 10" Housing with Gauge and Vent
★ 5.0
Reviews: 3

FH10B1-B-WB Aquafilter big blue 10" filter housing

Aquafilter FH10B1-B-WB is a BIG BLUE 10" type housing for cold water filtration at the inlet of the installation. It consists of a bowl and a head with a 1" brass thread. It features a vent valve and a pressure gauge to monitor the level of contamination of the cartridge. It can operate individually or in a series configuration and is compatible with BIG BLUE 10" cartridges (mechanical, carbon, and specialty).
Housing standard
Big Blue 10″
Cartridge length
10″
Connection
1″

Brand: AQUAFILTER

Free delivery within Poland
Delivery to your chosen address | 14-day returns
Price 249.00 zł
Aquafilter FHPR34-HP1 Reinforced 3/4" Housing, 10 Bar
★ 5.0
Reviews: 3

FHPR34-HP1 Aquafilter pipe housing for 10bar 3/4"

Reinforced Aquafilter FHPR34-HP1 housing for 10" cartridges with a transparent cover and 3/4" brass thread. Designed for a constant working pressure of up to 10 bar. Two O-rings increase tightness, and the air vent valve facilitates startup after cartridge replacement. For single or series installation on the cold water supply.
Housing standard
Slim 10″
Cartridge length
10″
Connection
3/4″
Maximum working pressure
10 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 75.00 zł
Big Blue 20" Double O-Ring Filter Housing for 20" Cartridges
★ 5.0
Reviews: 2

Big Blue 20" Double O-ring Filter Housing

Big Blue 20" housing for filter cartridges measuring 20" x 4.5". Two-part construction (blue cover + head with 1" thread) and double o-ring ensure tightness and stable operation. The blue cover limits light access, and vent facilitates startup after cartridge replacement. For installation on cold water; single or series installation possible.
Housing standard
Big Blue 20″
Cartridge length
20″
Connection
1″
Maximum working pressure
6 bar

Free delivery within Poland
Delivery to your chosen address | 14-day returns
Price 249.00 zł
Temporarily out of stock Aquafilter FHPR34-3V_R 10" Housing with Drain Valve
★ 5.0
Reviews: 2

FHPR34-3V_R Aquafilter housing with 3/4" valve filter

Aquafilter FHPR34-3V_R is a 10" housing for cold water filtration. The three-element design facilitates servicing in areas with limited height, as the cover does not unscrew downwards. The housing has brass connections of 3/4", a vent valve, and a drain valve for flushing the cartridge under pressure.
Housing standard
Slim 10″
Cartridge length
10″
Connection
3/4″
Maximum working pressure
6 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 99.00 zł
Check availability
10" BB Water Filter Housing with Bypass for RO Systems

10" BB Water Filter Housing Flow WaterRO with 1" - 3/4" Bypass BIG BLUE

The 10" BB BIG BLUE flow water filter housing with built-in bypass provides complete control over the installation: filtration mode, filter bypass, and total shut-off. Equipped with a control valve and a pressure relief button, it facilitates service and cartridge replacement. 1" thread + reduction from 1" to 3/4". An additional 3/8" connection allows for easy integration of the housing with RO systems.
Housing standard
Big Blue 10″
Cartridge length
10″
Connection
3/8″

Brand: WODARO

Free delivery within Poland
Delivery to your chosen address | 14-day returns
Price 288.00 zł
Temporarily out of stock WODARO 3/4" Water Filter Housing, 10" In-Line Housing

WODARO 3/4" Water Filter Housing, 10" In-Line Housing

WODARO filter housing for a 10-inch cartridge, with a 3/4-inch connection. Inline housing for water systems. Check cartridge dimensions and installation requirements before choosing a cartridge.
Housing standard
Slim 10″
Cartridge length
10″

Brand: WODARO

Lead time confirmed in your quote
Price on request
Explore this product
Temporarily out of stock WODARO 1/2" Water Filter Housing, 10" In-Line Housing

WODARO 1/2" Water Filter Housing, 10" In-Line Housing

WODARO filter housing for a 10-inch cartridge, with a 1/2-inch connection. Inline housing for water systems. Check cartridge dimensions and installation requirements before choosing a cartridge.
Housing standard
Slim 10″
Cartridge length
10″

Brand: WODARO

Lead time confirmed in your quote
Price on request
Explore this product
10" Flow Water Filter Housing with 1" Brass Thread

Water Filter Housing Flow 1" Inch Pipe Body for Whole House 10"

Flow-through water filter housing WodaRO for home installation. The 10" body with 1" connections and a transparent cover facilitates monitoring the degree of contamination of the cartridge. The head with a brass thread, double sealing on two O-rings, and a vent support tight and stable operation. Included: seals, mounting key, and mounting plate. Filter cartridges are not included.
Housing standard
Slim 10″
Cartridge length
10″
Connection
1″
Maximum working pressure
6 bar

Brand: WODARO

Delivery to your chosen address | 14-day returns
Price 64.00 zł
Temporarily out of stock WODARO 1" Water Filter Housing, 10" In-Line Housing

WODARO 1" Water Filter Housing, 10" In-Line Housing

WODARO filter housing for a 10-inch cartridge, with a 1-inch connection. Inline housing for water systems. Check cartridge dimensions and installation requirements before choosing a cartridge.
Housing standard
Slim 10″
Cartridge length
10″

Brand: WODARO

Lead time confirmed in your quote
Price on request
Explore this product
10" Flow Water Filter Housing with 3/4" Brass Thread

Water Filter Housing Flow 3/4" Inch Inline Body for Whole House 10"

Flow-through water filter housing 10" for installation on the cold water supply or in front of household appliances. The body with a transparent cover and a head with a 3/4" brass thread facilitates cartridge inspection. Double sealing with two O-rings and a vent support tightness and stable operation. Included: seals, wrench, mounting plate. Filter cartridges not included.
Housing standard
Slim 10″
Cartridge length
10″
Connection
3/4″
Maximum working pressure
6 bar

Brand: USTM

Delivery to your chosen address | 14-day returns
Price 59.00 zł
10" Big Blue Filter Housing with Dual O-Rings

BIG BLUE 10" PIPE BODY 2 x O-RING

10" BB housing mainly used for water inlet, compatible with 10" Big Blue cartridges.
Housing standard
Big Blue 10″
Cartridge length
10″
Connection
1″
Maximum working pressure
6 bar

Brand: TOP FILTER

Delivery to your chosen address | 14-day returns
Price 139.00 zł
DAFI 1" Inline Water Filter Housing for Home Systems

DAFI 1" inline water filter

The DAFI pipe body is a solid and durable base for water filters, designed for reliability and long lifespan. It is perfect for home water installations, ensuring easy installation and hassle-free use.
Connection
1″
Maximum working pressure
6 bar
Maximum working temperature
30 °C

Brand: DAFI

Delivery to your chosen address | 14-day returns
Price 135.99 zł
Temporarily out of stock 10" Whole House Filter Housing, 3/4" Brass Thread

Whole house water filter cartridge 3/4" connection 10" filter housing

3-piece filter housing 10" for installation at the water inlet in the house. The transparent cover facilitates monitoring the degree of contamination of the cartridge, and the ring construction ensures tightness and convenient cartridge replacement. Head with brass thread, 3/4" connection. For tap water and from your own source. Cartridges are not included.
Housing standard
Slim 10″
Cartridge length
10″
Connection
3/4″
Maximum working pressure
6 bar

Brand: AQUAFILTER

Delivery to your chosen address | 14-day returns
Price 44.00 zł
Check availability
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