Triple-Lock Gas/Oil Flue Liner

Triple lock liner is the first liner we ever made and is still a firm favourite with installers. It is manufactured in the UK using high grade 316 commercial stainless steel and has been approved by HETAS.

Our meticulous production process ensures constant monitoring for tolerance, consistency, and adherence to specifications, guaranteeing a superior quality flue liner.

Triple-Lock features a unique joint design folded and locked in three planes, this gives these liners a strong seal, making them completely gas tight. 

Perfect for both residential and commercial applications, our liners are ideal for lining brick chimneys, whether it's for gas or 28 sec oil fires. 

Available in 4 diameters from 3" 80mm to 6" 150mm, Triple lock also comes with a 10 years warranty! 

All you need for your Gas/Oil installations!

We also offer Triplelock installation packs to make it even quicker

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