Gilmour Double Female Brass Swivel Connector Thread Size 1/2" NPT (F) to 3/4" NH (F) 805574-1001 Use to connection threading pipe and hose Both ends female Made in China Design of connector may vary For connecting threaded pipe and hose. Premium construction for maximum strength and durability. Thread size 1/2 inch National Pipe Thread; 3/4 inch National Hose Thread. Manufactured using highest level of quality control. Solid brass connector.