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Plumbing Compression Fittings, Connectors & Couplings
Shop plumbing compression fittings at Plumbco, with a range of connectors and couplings for compatible plumbing pipework. Whether you're carrying out a repair, replacing a fitting or completing a new installation, explore practical solutions for joining pipes and adapting connections.
Our compression fittings range includes straight connectors, reducing couplers, elbows, end caps, male and female iron connections, and reducing sets. Different fitting types and sizes are available to suit a variety of plumbing requirements.
Compression fittings are commonly used to create mechanical pipe connections without soldering, using a compression nut and olive to secure the joint. Always check the fitting material, pipe dimensions, connection type and application to ensure compatibility with your installation.
Browse Plumbco's compression fittings online to find the plumbing connectors and couplings you need for your next project. Next-day shipping is available, subject to stock availability and delivery terms.
Speedfit Brass 22 x 3/4 FI Straight Coupling
MW452216N
The JG Speedfit Brass Female Coupler (MW452216N) provides a durable and reliable connection between 22mm metric pipework and 3/4" BSP threaded fittings. Designed for use in heating and plumbing systems, this high-quality brass adaptor ensures a secure transition between Metric and MBSP connections, making it ideal for professional UK plumbing installations.
£17.97 incl tax
Compression 35mm x 1 1/4 FI Straight
COSAF-35G
The COSAF-35G Compression Straight Connector is a heavy-duty brass fitting designed for secure connection between 35mm pipework and 1¼" female iron threaded fittings. Ideal for hot and cold water and central heating systems, this high-quality compression connector ensures reliable, leak-free performance with easy installation for UK plumbing and heating applications.
£20.00 incl tax
Compression 8mm Copper Olive
COOC-08
The COOC-08 8mm copper compression olives provide a reliable sealing solution for compression fittings in plumbing and heating systems. Designed for secure, leak-free connections in domestic and commercial pipework installations.
£0.35 incl tax
Polypipe Underfloor Heating 18mm Manifold Adaptors
UFH18EC
The Polypipe UFH18EC 18mm Eurocone Adaptor is designed for secure and reliable connections in underfloor heating systems. Ideal for UFH manifolds, it provides a tight, leak-free fit between pipework and heating components, ensuring efficient system performance and easy installation.
£10.14 incl tax
MON4534X Monument grip & tap 27x32mm Box Spanner Extension
MON4534X
The Monument 4534X Grip+ T1 Hex Fitting (27mm x 32mm) is designed for use with box spanners to provide secure grip and improved access in tight plumbing spaces. Ideal for tightening and loosening tap backnuts, compression fittings, and concealed pipe connections, this durable fitting is a must-have for professional plumbers and installation engineers.
£7.93 incl tax
Protecta-Line 32mm x 32mm Stopcock
44142308
Protecta-Line 32mm Mechanical Compression Stopcock 44142308 designed for use with Protecta-Line barrier pipe systems. This BS 5433 stopcock provides reliable flow isolation for cold water applications and features integral mechanical compression connections. WRAS approved with a maximum working pressure of 12.5 bar.
£489.11 incl tax
Protecta-Line 25mm x 25mm Stopcock
44142307
Protecta-Line 25mm Mechanical Compression Stopcock 44142307 designed for use with Protecta-Line barrier pipe systems. This BS 5433 stopcock provides reliable flow isolation for cold water supplies and includes a 22mm copper Type A insert. WRAS approved with a maximum working pressure of 12.5 bar.
£274.46 incl tax
Primaflow 8mm Copper Compression Olives – Pack of 2 (9CO082)
PPOB-08
The Primaflow 8mm Copper Compression Olives (9CO082) are designed for use with compatible 8mm compression fittings, helping create a secure, leak-resistant connection between copper pipework and compression fitting components.
Manufactured from copper, these olives are compressed around the pipe when the fitting is tightened, forming a seal within the compression joint. Suitable for plumbing and pipework installations, they are a useful spare for plumbers, heating engineers and general maintenance work.
Supplied in a convenient pack of two, the Primaflow 8mm copper olives provide a practical solution for replacing existing olives or completing new compression connections.
Manufactured from copper, these olives are compressed around the pipe when the fitting is tightened, forming a seal within the compression joint. Suitable for plumbing and pipework installations, they are a useful spare for plumbers, heating engineers and general maintenance work.
Supplied in a convenient pack of two, the Primaflow 8mm copper olives provide a practical solution for replacing existing olives or completing new compression connections.
£2.34 incl tax
Primaflow 22mm Brass Compression Olives – Pack of 3 (9CO223)
PPOB-22
The Primaflow 22mm Brass Compression Olives (9CO223) are designed for use with compatible 22mm compression fittings, helping create a secure, leak-resistant connection between copper pipework and fitting components.
Manufactured from brass, these compression olives fit around the pipe and compress within the fitting when tightened, forming a seal at the joint. Suitable for plumbing and heating installations, they are a useful component for new pipework connections, repairs and maintenance.
Supplied in a convenient pack of three, the Primaflow 22mm brass olives are a practical spare for plumbers, heating engineers and DIY plumbing projects.
Manufactured from brass, these compression olives fit around the pipe and compress within the fitting when tightened, forming a seal at the joint. Suitable for plumbing and heating installations, they are a useful component for new pipework connections, repairs and maintenance.
Supplied in a convenient pack of three, the Primaflow 22mm brass olives are a practical spare for plumbers, heating engineers and DIY plumbing projects.
£3.60 incl tax
10mm Compression Mini Gas Ball Valve – Yellow Lever Handle 9623
9623
The 10mm Compression Mini Gas Ball Valve (9623) is a compact plated brass ball valve featuring a yellow-coded lever handle for easy operation. Designed for installations where space is limited, it provides a convenient shut-off solution for compatible pipework systems.
The lever handle can be easily removed to reveal a screwdriver slot and spanner flats, allowing alternative operation where required.
Suitable for natural gas, LPG, water, oils and compressed air, this mini ball valve offers a versatile solution for plumbing and gas installation applications.
The lever handle can be easily removed to reveal a screwdriver slot and spanner flats, allowing alternative operation where required.
Suitable for natural gas, LPG, water, oils and compressed air, this mini ball valve offers a versatile solution for plumbing and gas installation applications.
£3.87 incl tax
Navigator 25mm MDPE x 15mm Copper Pipe Stop Tap Adaptor – BFMC-2515
BFMC-2515
The Navigator 25mm MDPE x 15mm Coupler is a brass adaptor designed to connect 25mm MDPE pipework to 15mm copper pipework. Suitable for above-ground installations, it provides a practical connection between MDPE and copper plumbing systems.
This poly stop tap adaptor is manufactured from brass and is ideal for compatible water supply installations where a transition between MDPE and copper pipe sizes is required.
This poly stop tap adaptor is manufactured from brass and is ideal for compatible water supply installations where a transition between MDPE and copper pipe sizes is required.
£18.08 incl tax
Navigator 25mm MDPE x 22mm Copper Pipe Stop Tap Adaptor – BFMC-2522
BFMC-2522
The Navigator 25mm MDPE x 22mm Coupler is a brass adaptor designed to connect 25mm MDPE pipework to 22mm copper pipework. Suitable for above-ground installations, it provides a practical connection between MDPE and copper water supply systems.
This poly stop tap adaptor is manufactured from brass and is ideal for compatible plumbing installations where a transition between MDPE and copper pipe sizes is required.
This poly stop tap adaptor is manufactured from brass and is ideal for compatible plumbing installations where a transition between MDPE and copper pipe sizes is required.
£24.02 incl tax
Primaflow 22mm Brass Inline Y-Strainer Compression x Compression – 156339
41005479
The Primaflow 22mm Brass Inline Y-Strainer is designed to filter debris and unwanted particles from pipework systems, helping to protect downstream components and equipment from potential blockages or damage.
Manufactured from brass, this inline Y-strainer features compression x compression (C x C) connections for installation into compatible 22mm pipework. Its strainer element helps capture solid particles circulating through the system, making it a useful addition to plumbing and heating installations.
With a maximum pressure rating of 16 bar and a 5-year manufacturer's guarantee, this fitting provides a practical solution for inline filtration.
Manufactured from brass, this inline Y-strainer features compression x compression (C x C) connections for installation into compatible 22mm pipework. Its strainer element helps capture solid particles circulating through the system, making it a useful addition to plumbing and heating installations.
With a maximum pressure rating of 16 bar and a 5-year manufacturer's guarantee, this fitting provides a practical solution for inline filtration.
£4.68 incl tax
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