Made in the USA, the Safety Camlock fitting by TerreMax is a patented positive-locking system. Designed to keep the arms of the coupling from unintentionally opening during operation due to vibration from a pump or transport, this safety feature makes it one of our most popular fittings. TerreMax's Safety Camlock coupling is a reliable way of connecting and disconnecting equipment that transfers fluid like sprayers, pumps, hoses, and many other applications.