Compression Fittings

The COSAM‑28F 28mm x 1″ Compression Straight Connector is a durable brass plumbing fitting that creates a secure straight‑line connection between 28mm pipework and a 1″ BSP male thread. Ideal for hot and cold water systems, central heating and general plumbing installations, this compression adaptor delivers reliable, flame‑free installation with a WRAS‑approved, pre‑loaded olive for quick and leak‑resistant performance.

The 8mm x 1/4 Inch Compression Straight Connector FI COSAF-08B is a high-quality fitting designed to securely join copper pipework in plumbing and heating systems. Ideal for domestic and commercial installations, this straight connector ensures a leak-free, durable connection and easy installation for professional and trade use.

The COMP 22mm Straight Coupling COC-22 is a quality brass compression fitting designed to join two 22 mm copper pipes in a straight line — ideal for both hot and cold water systems. Supplied complete with a pre-loaded olive in the nut ends, it offers a reliable, leak‑proof joint without the need for soldering — perfect for maintenance, repairs, or installations where flame‑free fitting is a must. This coupling is WRAS‑approved and built to last, making it an excellent choice for domestic plumbing and heating applications.

10mm Compression Coupling - supplied with a pre-loaded olive in compression nut.
Suitable for hot & cold domestic water systems.

The Navigator 10mm Brass Compression Equal Tee is designed for secure and efficient pipe connections. Supplied with pre-loaded olives in the nut ends, it ensures quick and hassle-free installation. Ideal for hot and cold water systems.

The Compression 10mm x 1/4" Straight Connector FI (COSAF‑10B) is a high-quality brass compression fitting designed for connecting 10mm pipework to 1/4" fittings with ease and reliability. Ideal for domestic and commercial plumbing, this straight connector ensures a durable, leak-free connection for water, heating, and general pipe installations.

The Compression 10mm x 3/8" Straight Connector MI (COSAM‑10C) is a durable brass compression fitting designed to connect 10mm pipework to 3/8" fittings with ease and reliability. Ideal for domestic and commercial plumbing, this straight connector ensures a tight, leak-free connection for water, heating, and general pipe installations.

Comp 10x 8 Reducing Coupler is a high-quality compression fitting that is perfect for reducing the size of copper pipes. It is made of brass and has a male thread size of 10mm and 8mm. This fitting is easy to install and is a great way to ensure a leak-free connection.

The COMP 15mm Stop End (COEC‑15) is a durable brass compression fitting designed to securely seal the end of a 15mm copper pipe. Pre-loaded with an olive for fast, leak-proof installation, it provides a reliable, solder-free solution for hot and cold water systems, plumbing repairs, or temporary and permanent pipe closures, making it essential for both domestic and commercial plumbing applications.

The Navigator 15mm Compression Tank Connector is a high-quality plumbing fitting designed for connecting tanks to water systems. Supplied with a pre-loaded washer and olive in the compression nut, this connector ensures a secure and leak-free installation.

The Navigator 15mm x 1/2" Compression Bent Tap Connector is a 90-degree brass fitting ideal for secure and leak-free tap connections. Supplied with a pre-loaded olive in the compression nut, it’s perfect for hot and cold water systems in residential and commercial plumbing.

The Compression 15mm x 1/2" Elbow Female Iron is an ideal plumbing component for applications where soldering is not suitable. This 90-degree elbow is suitable for both hot and cold water systems and comes with a pre-loaded olive in the compression nut for easy installation. It provides a reliable and leak-free connection.

The COSAF‑15D compression straight connector delivers a reliable, solder‑free solution to join a 15 mm copper pipe to a ½″ BSP female threaded fitting. Constructed from durable, corrosion‑resistant brass and supplied with a pre‑loaded olive, it ensures a flame‑free leak‑tight joint — perfect for hot and cold potable water systems, radiator connections or retrofit installations where soldering isn’t an option. WRAS‑approved and designed for quick installation, this connector is a trusted choice for professional plumbers and domestic heating projects alike.

The Compression 15mm x 1/2" Straight Tap Connector is ideal for hot and cold water systems where soldering is not an option. This connector is supplied with a pre-loaded olive in the compression nut for ease of installation. Compression fittings are a great alternative to soldering for plumbing applications that require a strong, secure joint.

15mm x 1/2" Compression Wall Plate Elbow – brass 90° fitting with pre-loaded olive. Ideal for connecting pipework to fixtures, such as taps or appliances. Suitable for hot and cold water systems. Easy to install without soldering.

The Compression 15mm x 12mm Reducing Set is a versatile plumbing component for applications where a reduction in size is needed. This 3-piece set is suitable for hot and cold water systems, providing a reliable and secure connection.

The COMP 15 x 15 x 22 reducing tee is a high-quality brass fitting designed for use in plumbing systems. This reducing tee is durable, reliable, and perfect for a wide range of applications. Buy it online today at Plumbco Online.

The Compression 15mm × 3/4" Straight Connector MI is a high-quality brass plumbing fitting designed to connect 15mm pipework to ¾" threaded fixtures securely. Ideal for hot and cold water systems, this straight compression connector ensures a leak-free, durable joint suitable for both trade professionals and DIY plumbing projects.

15mm x 8mm Compression Reducing Coupling - supplied with a pre-loaded olive in compression nut.
Suitable for hot & cold domestic water systems.

The 15mm x 8mm Compression Reducing Sets CORS-1508 are high-quality fittings designed to securely connect pipes of different sizes. Perfect for domestic and commercial plumbing and heating systems, these reducing sets provide reliable, leak-free performance and easy installation for professional and trade use.