ZPN MINI spring clamps provide quick connection of 1/8”, 1/4”, 3/8” and 1/2” female threaded to 1/2”, 3/4″ and 1″ pipes. It’s enough make one hole on pipe, insert the clamp with the seal and fix to pipe with the spring. Up to now, only single spring model is available. Models are made of different colours, depending on pipe size (yellow clamp for pipe size 1/2”, green clamp for pipe size 3/4”, blue clamp for pipe size 1”).