These brass drain petcocks are used with many STM fluid catch cans and overflows. Simply turn the handle to open the valve allowing fluid to slowly drain out. These are also used with some radiators. Available in 1/4 or 3/8 NPT male threads, sold individually, price is for one fitting.

Purchase Includes:
(1) Fitting

Recommended for Install:
PTFE Pipe Tape (63164)

Note:
Sometimes the handles are threaded very tight from the machine shop. You may need a couple pliers to release them.