Needed taller pressure pot to cast tubes in. This fit the bill. I pressurize at 50PSI. Removed all internal siphon tubes, (will need to apply heat to break the glue seal) added a few NTP threaded connections a ball valve and a pressure gauge and I was in business. Drops 10 PSI in 12 hours.. that's good enough for me. Cheapest for casting up too 14" long (height) with in a 2.5" foot print. (The bottom of the pot is concave.)