BETTER : Composite

Made of durable Nylon and Brass, the Composite is one "TOUGH" coupling
Great to use where a metal hose end could cause paint or finish damage, such as a boat or RV
Internal expansion allows for easy efficient assembly and will not restrict fluid flow
Available for 1/2", 19/32", and 5/8" I.D. hose 3/4-11.5 NHT thread