3/8" inside coupler

This fitting has two smooth male connectors, which slide inside 3/8-inch hoses.

Use a hose clamp and glue to make it easier and more durable to fit the coupling to the hose.

Dimensions
Outside diameter of the male fittings: 10 mm (for 3/8" flexible pipe)
Length: 54 mm

Part numbers
Rising Dragon : 411-0407