The Conlok system is a quick fit unthreaded conduit system, desigined to dramatically reduce labout and increase speed of installation. Standard conduit tube is still used and the accessories replaced with Conlok boxes, couplings and adaptors 

The British Standard Institute has accredited the Conlok system with BS EN 61386-21:2004 the same BS no. as the traditional screwed system. Conlok is the only quick fit system to achieve this standard and the only system to offer a full range of 20mm and 25mm accessories