Metal Work push-in fittings ensure fast, secure tube-to-actuator connections, reusable thousands of times without compromising pneumatic or mechanical sealing. The release system is quick and easy: pressing the sleeve opens the spring, freeing the tube with a distinctive “click-clock.” Available in many configurations for metric tubes (Ø 3–14) and inch tubes (Ø 1/8–1/2), with G, ISO 7-1 tapered, metric, and NPT threads. Some models feature patented screwdriver-release slots or asymmetric wall-mount rings.