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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.
Compression 35mm x 22mm Reducing Set
CORS-3522
The Compression 35mm x 22mm Reducing Set (CORS‑3522) is a high-quality brass fitting designed to join pipes of different diameters with ease and reliability. Ideal for domestic and commercial plumbing, this reducing set ensures a tight, leak-free connection for water, heating, and general pipework installations.
£3.66 incl tax
35mm Oliver Compression Copper COOC-35
COOC-35
The Navigator COOC-35 35mm Copper Compression Olive is a replacement fitting component designed for use with compatible compression fittings in plumbing and heating systems.
Made from copper, this 35mm olive is suitable for compatible hot and cold water pipework. It helps form the compression joint when correctly fitted with the appropriate matching components.
Made from copper, this 35mm olive is suitable for compatible hot and cold water pipework. It helps form the compression joint when correctly fitted with the appropriate matching components.
£1.25 incl tax
Compression 35mm x 28mm Reducing Sets CORS‑3528
CORS-3528
The Compression 35mm x 28mm Reducing Sets CORS‑3528 are high‑quality copper compression fittings designed to connect 35 mm and 28 mm pipework with ease. Ideal for hot and cold water systems, central heating, and general plumbing installations, these reducing sets ensure a secure, leak‑proof joint without soldering. Made to British and European standards, they are perfect for both professional and DIY plumbing projects requiring durable and reliable copper connections.
£2.49 incl tax
Compression 35mm Straight Coupling COC-35
COC-35
The Compression 35mm Straight Coupling COC-35 is a high-quality copper compression fitting designed to securely join two 35 mm pipes without soldering. Ideal for hot and cold water systems, central heating and general plumbing installations, this straight coupling delivers a strong, leak-proof connection with quick and easy installation. Manufactured to British and European standards, it’s a dependable choice for both professional plumbers and DIY projects.
£20.19 incl tax
Navigator 15mm Brass Compression Repair Coupling – COCR-15
COCR-15
The Navigator 15mm Compression Repair Coupling is a brass plumbing fitting designed to join sections of 15mm pipework when carrying out repairs or alterations. Supplied with pre-loaded olives in the nut ends, it provides a convenient compression connection without the need for soldering.
Compression fittings are particularly useful when working in areas where soldering is unsuitable or access is restricted. WRAS approved and suitable for hot and cold domestic water systems, this repair coupling is a practical addition to any plumbing installation.
Compression fittings are particularly useful when working in areas where soldering is unsuitable or access is restricted. WRAS approved and suitable for hot and cold domestic water systems, this repair coupling is a practical addition to any plumbing installation.
£7.27 incl tax
Navigator 20mm MDPE x 15mm Copper Pipe Stop Tap Adaptor – BFMC-2015
BFMC-2015
The Navigator 20mm MDPE x 15mm Coupler is a brass adaptor designed to connect 20mm 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.
£11.76 incl tax
20mm x 15mm Poly Stopcock Adaptor
BFSTA-2015
20mm x 15mm stop tap adaptor for secure connection between different pipe sizes. Durable compression fitting ideal for plumbing and heating installations.
£6.83 incl tax
25mm Olive to MDPE
BFMOC-25
25mm MDPE olive copper compression fitting designed for secure, leak-free connections in water and plumbing systems. Durable and ideal for MDPE pipe installations.
£2.40 incl tax
25mm x 15mm Poly Stopcock Adaptor
BFSTA-2515
25mm x 15mm stop tap adaptor for reducing pipe size and creating secure connections in plumbing systems. Durable compression fitting for professional installations.
£8.57 incl tax
25mm x 22mm Poly Stopcock Adaptor
BFSTA-2522
25mm x 22mm stop tap adaptor for reducing pipe sizes and ensuring secure connections in plumbing systems. Durable compression fitting for reliable installations.
£12.10 incl tax
Comp. C/P - 22mm Equal Tee
CCET-22
22mm chrome compression equal tee for creating secure three-way pipe connections in plumbing and heating systems. Durable and corrosion-resistant for professional installations.
£13.52 incl tax
Comp. C/P - 22mm End Cap
CCEC-22
22mm chrome compression stop end for securely sealing pipework in plumbing and heating systems. Durable, corrosion-resistant finish for a professional installation.
£8.84 incl tax
Comp. C/P - 22mm Coupling
CCC-22
22mm chrome compression straight coupling for joining pipework securely in plumbing and heating systems. Durable, corrosion-resistant fitting for professional installations.
£7.93 incl tax
Comp. C/P - 28mm Coupling
CCC-28
28mm chrome compression straight coupling for securely joining larger pipework in plumbing and heating systems. Durable, corrosion-resistant fitting for professional installations.
£13.91 incl tax
Comp. C/P - 15 x 1/2 St Conn. Cx Mi
CCSAM-15D
15mm x 1/2" chrome compression straight connector with male iron thread for secure pipe-to-thread connections in plumbing and heating systems. Durable, corrosion-resistant fitting.
£5.24 incl tax
Comp. C/P - 28mm Equal Tee
CCET-28
28mm chrome compression equal tee for creating secure three-way pipe connections in plumbing and heating systems. Durable, corrosion-resistant and easy to install.
£27.06 incl tax
Compression 28mm Copper Olive
COOC-28
28mm compression copper olives for creating secure, leak-tight pipe joints in plumbing and heating systems. Durable sealing rings for professional compression fittings.
£0.73 incl tax
Compression 42mm Copper Olive
COOC-42
42mm compression copper olives for secure, leak-tight sealing in large-bore plumbing and heating compression fittings. Durable and reliable for professional installations.
£2.66 incl tax
Compression 22 x 3/4 Wall Plate Elbow
COWPE-22E
This 22mm x 3/4" compression wall plate elbow provides a reliable, space-saving connection for pipework in central heating and plumbing systems. Designed for secure fixing to walls, it’s ideal for radiator installations and domestic water systems.
£7.68 incl tax
Compression 54mm X 2" St Conn MI
COSAM-54I
This 54mm x 2" compression straight connector male iron is designed for robust, high-performance plumbing and heating installations. Ideal for larger diameter pipework, it provides a secure, leak-resistant connection suitable for domestic and commercial systems.
£24.56 incl tax
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