Compression Fittings

Compression 28mm x 1" male iron 90 degree Elbow - supplied with a pre-loaded olive in the nut end of the fitting.
Suitable for hot and cold water systems.
Compression fittings are useful when working in conditions that are not suitable for soldering.

The 28mm x 1" Compression Straight Connector (COSAF-28F) is a high-quality brass fitting designed to provide secure, leak-resistant connections between pipes in domestic and commercial plumbing or heating systems. Ideal for maintenance, repairs, or new installations, this straight connector ensures reliable water flow and long-lasting performance.

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 Compression 15mm x 1/2" Bent Tap Connector COBTC-15D is a durable copper compression fitting designed to connect 15 mm pipework to 1/2" threaded taps with ease. The bent design allows for easier alignment in tight spaces, making it ideal for basin, sink and bath tap installations. Suitable for hot and cold water systems, this connector provides a secure, leak-free joint without the need for soldering, making it perfect for both trade and DIY plumbing projects.

The Compression 15mm x 1/2" Elbow FI COEAF-15D is a high-quality copper compression fitting designed to connect 15 mm pipework to 1/2" female threaded outlets at a 90° angle. Ideal for taps, valves and confined plumbing spaces, this elbow fitting is suitable for hot and cold water systems and installs quickly without soldering. Providing a secure, leak-proof connection, it’s a reliable choice for both professional plumbers and DIY plumbing projects.

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 Sets CORS‑1512 are durable copper compression fittings designed to reduce 15 mm pipework down to 12 mm with ease. Perfect for hot and cold water systems, central heating, and general plumbing installations, these reducing sets provide secure, leak-proof joints without soldering. Engineered to British and European standards, they’re ideal for professional plumbers and DIY plumbing projects alike.

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.