Large Compression Fittings
Strong, secure connections for larger pipework. Easy to install, highly durable, and WRAS approved for reliable performance in commercial and industrial systems.
Features & Benefits
Professional-Grade Large Compression Fittings - 67mm to 108mm
Manufactured to the highest standards in the UK, our complete range of brass compression fittings provides the reliability and quality demanded by today’s professional installers. Designed to join copper pipe using a heat-free mechanical joint upon tightening the nut, these fittings ensure safe and efficient installations.
Our large brass compression fittings, ranging from 67mm to 108mm, offer the same trusted quality in a larger format. These fittings create a secure joint by tightening the nuts onto the flange faces, eliminating the need for heat and enhancing installation safety.
Flowflex Compression Fittings are compatible with copper tubes manufactured to BS EN 1057. Each fitting is engineered for optimal performance, ensuring a secure, leak-free connection and seamless integration with industry-standard pipes. Trust our fittings to deliver reliable solutions for all your plumbing needs.



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Explore our extensive range of high-quality products designed for professional installers. Each item ensures optimal performance and durability, making your job easier and more efficient. Discover the perfect solution for any project in our full range and experience the quality and excellence that set us apart.
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Frequently Asked Questions
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Contact SupportAre Flowflex Large Compression Fittings Manufactured In The UK?
Yes, Flowflex Large Compression Fittings are manufactured in the UK.
What Size Range Of Large Compression Fittings Do You Stock?
Our Large Compression Fittings size range is from 67mm to 108mm.
Are Large Compression Fittings Installed Like Standard Sizes?
Although Large Compression Fittings create a heat-free mechanical joint, the connection varies from standard compression fittings in that you need to tighten the various nuts onto the flange faces. Full details can be found in our technical section.
What Tube Can Large Compression Fittings Be Installed On?
Large Compression Fittings are designed to connect copper tube to BS EN1057 and be of hard (R290) or half-hard (R250) tempers.
Any Questions?
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