The Acme Series of couplers and connectors offer a compact design making it ideal for hose assemblies. This lightweight coupler, which is 25% lighter than other interchanges, helps to maximize the user's range of motion and minimizes the fatigue associated with larger, heavier couplers. They also allow 15-30% more flow than other 1/4" interchanges. Six locking balls provide a more secure and balanced connection, assuring a longer connector life. The "radius design" connector allows more surface area contact with the locking balls, making it more durable even in high vibration conditions.