I decided to get away from threaded fittings and go the tri-clamp route, so I have the following threaded fittings for sale. I only used these once.
12v ball valves. $20 each
cam-lock high flow hose barb $5 each
cam-lock x 1/2" mpt $3 each
thermometers w/ thermowells $25 each.
Ball valves $15...