A 3 part straight coupler F/F, (female thread/ female thread), made of brass. The sealing in between is done by conical closure.

Brass extension with internal and external thread to extend flush mounted sockets or wall plates.

Brass extension with internal and external thread to extend flush mounted sockets or wall plates.

Brass extension with internal and external thread to extend flush mounted sockets or wall plates.

Brass extension with internal and external thread to extend flush mounted sockets or wall plates.

Brass extension with internal and external thread to extend flush mounted sockets or wall plates.

Brass extension with internal and external thread to extend flush mounted sockets or wall plates.

Brass extension with internal and external thread to extend flush mounted sockets or wall plates.

A simple and effective solution to avoid galvanic torque.