Filters

Price

Brand

Thread gender

Water Connections for Filter Installations | Mojawoda.com

Water connections

Water connections, also called water supply connections, are sections of pipe and installation components that make it possible to connect an internal installation to a water supply source. In practice, they are used both in household installations and when connecting water filters and reverse osmosis systems.

In this category, you will find solutions that make it easier to create a tight and convenient system connection. These include, among others, male threaded connections, female threaded connections, and compression connections.

Choosing the right model depends on the installation requirements and the material from which the water pipes are made. A properly selected connection helps streamline installation, servicing, and the everyday operation of the entire system.

CALCULATE BEFORE YOU CHOOSE

Useful calculators

Check the key values before choosing a solution.

Identify BSP/NPT thread Compare thread diameter and standard before buying a fitting.
Identify BSP/NPT thread

BSP/NPT pipe-thread calculator

Compare indicative measurement ranges by nominal size, standard family and thread side.

Measurement range (mm)—
Measurement range (cm)—
Indicative table
ThreadNPT femaleNPT maleBSP femaleBSP male
1/88.50–8.909.40–9.708.50–8.909.40–9.70
1/411.40–11.9012.90–13.1011.40–11.9012.90–13.10
3/814.90–15.4016.30–16.6014.90–15.4016.30–16.60
1/218.30–18.7020.70–21.1018.60–19.0020.50–20.90
3/423.70–24.1026.30–26.7024.10–24.5026.10–26.40
130.30–30.8032.90–33.4030.30–30.8033.00–33.20
5/4 (1 1/4)39.20–39.6041.40–42.0039.00–39.5041.50–41.90
6/4 (1 1/2)45.10–45.5047.30–47.9044.80–45.3047.40–47.80

Diameter alone does not identify the standard. Confirm pitch/TPI, profile angle, taper and component documentation.

Assumptions, scope and model version
Model version
MW-THREAD-1.0
Technical basis
MW-THREAD-1.0 — BSP/BSPT; NPT/NPTF
Technical owner
MojaWoda.com
Scope
Indicative workshop table for BSP/BSPT and NPT/NPTF. It does not confirm interchangeability or joint tightness.
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
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.

There are 6 products.

Sort by:
Showing 1-6 of 6 item(s)
Active filters
Reviews: 0

FXFVP chrome connectors for spout valve

Aquafilter FXFVP is a chrome-plated water connection for the sink faucet, designed for connecting a filter. Made of plastic with a chrome coating. It has a standard thread used in kitchen faucets (after removing the aerator). The valve allows for the flow or cutoff of water to the filter. A rubber seal is included in the set.
Thread gender
Female
Material
Plastic

Brand: AQUAFILTER

Ships in 24h | 14-day returns
Price 24.99 zł
Reviews: 0

1/2" connector with shut-off valve 1/4T

1/2" connector with shut-off valve and 1/4T quick coupling for installations with water filters or refrigerators. It has a 1/2" internal thread and quick couplings for a 1/4" (6.4 mm) hose on both sides of the valve. It allows for quick shut-off of the water supply during service, cartridge replacement, or device connection.
Thread size
1/2″
Thread gender
Female
Tube outer diameter
1/4″

Brand: WODARO

Ships in 24h | 14-day returns
Price 27.50 zł
Reviews: 0

3/4" connector with a shut-off valve 1/4T

Connect 3/4" with shut-off valve to filter and refrigerator installations. The 3/4" internal thread facilitates installation, and the valve allows for quick water shut-off without disassembling the pipes. Quick connectors for 1/4" (6.4 mm) tubing are used on both sides.
Thread size
3/4″
Thread gender
Female
Tube outer diameter
1/4″

Brand: WODARO

Ships in 24h | 14-day returns
Price 27.50 zł
Reviews: 0

3/8 Tee fitting for water RO filter supply connection

Tee with a power connection for connecting a water filter or reverse osmosis (RO) system. The 3/8" thread (Gz x Gw) allows for integration into the existing installation, while the 1/4" outlet is used to supply the filter. Operating temperature range 2-42°C.
Fitting type
Tee
Thread size
3/8″
Thread gender
Male + female
Tube outer diameter
1/4″

Brand: WODARO

Ships in 24h | 14-day returns
Price 9.15 zł
Reviews: 0

WATER CONNECTION KIT FOR SAMSUNG REFRIGERATOR 1/2''

Complete water connection kit for refrigerators (e.g., Samsung) with a connection to the water supply system. The set includes a 1/2" (approx. 20 mm thread) tee, a 1/4" connection valve, 10 m of tubing, a quick connector, and Teflon tape for sealing threaded connections. Operating temperature: 2-42°C.
Thread size
1/4″, 1/2″
Thread gender
Male + female
Tube outer diameter
1/4″

Brand: WODARO

Ships in 24h | 14-day returns
Price 44.50 zł

Water connections are inconspicuous but very important components of any installation supplying filters, reverse osmosis systems, and other treatment setups. They are responsible for the safe connection of individual parts of the installation and for the convenient delivery of water to the device. A well-selected connection makes installation easier, improves the tightness of connections, and helps avoid problems during later use.

In the Water connections category, you will find components used to connect an internal installation to the water circuit and to join components in filtration and reverse osmosis systems. These include, among others, male threaded connections, female threaded connections, and compression connections. Their selection should be matched to the installation requirements and the type of water pipes.

What are water connections used for?

Water connections are used wherever a water installation needs to be connected to a device or another section of the system in a tight and practical way. In the category of parts and accessories for water filters, they play a particularly important role because they affect the proper operation of the entire system.

  • they make it possible to connect an internal installation to the water supply network or water source,
  • they facilitate the installation of water filters and reverse osmosis systems,
  • they allow tight connections to be made in household and service installations,
  • they support the expansion, repair, and modernization of an existing system,
  • they help match the connection method to a specific type of pipe and fittings.

What types of water connections can you find in this category?

Depending on the installation method and the design of the system, different types of connections are used. The most common solutions are:

  • male threaded connections – used where a connection to a component with a female thread is required,
  • female threaded connections – used with components finished with a male thread,
  • compression connections – chosen in systems where quick and convenient installation matters.

The selection of the right variant depends on the design of the installation, the way the lines are routed, and compatibility with the other system components.

Why does choosing the right connection matter?

In filtration and plumbing installations, even a small component can affect the comfort of using the entire system. A properly selected connection helps reduce the risk of leaks and makes installation and later servicing easier.

Before purchasing, it is worth checking not only the type of connection, but also the end type on both sides of the connection, compatibility with the pipe material, and the intended use of a given component in a filtration or water supply installation.

Key benefits of a well-selected connection

  • more efficient connection of a filter or installation,
  • better fit to existing fittings,
  • greater convenience during maintenance and replacement of components,
  • a more organized installation process,
  • greater confidence in the correct operation of the system.

How to choose a water connection?

When choosing, it is best to be guided primarily by the requirements of the specific installation. There is no single universal solution for all systems, so before purchasing, it is a good idea to compare the connection method and the type of lines used in the system.

  1. Determine the place of use – one solution will work better for an under-sink filter, while another will be suitable for an extensive plumbing installation.
  2. Check the connection type – pay attention to whether you need a male threaded, female threaded, or compression connection.
  3. Consider the material of the water pipes – this is one of the basic factors affecting compatibility.
  4. Assess the installation requirements – the connection layout, available installation space, and the intended purpose of the system all matter.
  5. Match the component to filters and accessories – in RO and water filtration systems, all parts should work together.

Water connections in filter and reverse osmosis systems

This category is especially useful for people assembling or servicing water treatment systems. Water connections are used when installing water filters, reverse osmosis systems, and other installations in which stable water supply to the device is necessary.

These are practical installation components that make connection and the everyday operation of the system easier. A properly selected connection can also simplify later service work, for example replacing components or rebuilding the system.

Key information at a glance

AreaInformation
ApplicationConnecting an internal installation to the water supply network and joining components in water filtration systems.
Example typesMale threaded connections, female threaded connections, compression connections.
SelectionDepends on the installation requirements and the material from which the water pipes are made.
Practical benefitEasier installation, a tight connection, and more convenient system operation.
Typical useWater filters, reverse osmosis systems, household installations, and service work.

FAQ – frequently asked questions about water connections

What are water connections?

Water connections, also referred to as water supply connections, are components and sections of pipe used to connect an internal installation to the water circuit or to join parts of a filtration system.

What are water connections used for in filters?

They are used to connect water filters, reverse osmosis systems, and other devices that require water to be supplied in a tight and installation-friendly way.

What types of water connections are most common?

The most common types include male threaded connections, female threaded connections, and compression connections.

How do you choose the right connection for an installation?

You should check the installation requirements, the type of connection needed, and the material of the water pipes. Compatibility of the connection with the other system components is also important.

Does the pipe material matter when choosing a connection?

Yes. The choice of a specific model depends, among other things, on the material from which the water pipes are made, because this affects compatibility and the installation method.

Are water connections suitable only for household installations?

No. They can be used both in household installations and in the installation and servicing of water filtration and reverse osmosis systems.

Why is a tight connection so important?

A tight connection helps ensure proper system operation, reduces the risk of leaks, and improves the safety of using the installation.

Can a connection make servicing and system expansion easier?

Yes. A properly selected connection makes installation, disassembly, maintenance, and later modifications of the installation easier, especially in filtration systems.