Brass threaded adapter connecting half-inch to quarter-inch male threads.

Brass threaded adapter for connecting pipes of different sizes in plumbing systems.

Straight brass threaded adapter for 3/8 inch pipes.

Straight brass adapter reducing from 3/4 inch to 3/8 inch.

Straight brass threaded adapter for 1/2 inch pipes.

Straight brass adapter reducing from 3/4 inch to 1/4 inch pipe.

Brass straight adapter reducing half-inch thread to one-eighth-inch connection.

Straight brass adapter reducing from 3/8 inch to 1/4 inch.

Brass threaded adapter reducing half-inch to one-eighth inch connections.

Brass threaded adapter connecting 3/4 inch male to 1/2 inch male.

Stainless steel straight nipple for connecting different sized pipes.

Brass threaded adapter with 3/4 inch male connections on both ends.

Tapered thread nipple adapting eighth to quarter inch pipes.

Stainless steel hexagon nipple joint connecting 1/2 inch and 3/4 inch tapered threads.

Hexagon nipple joint adapting different tapered thread sizes.