[Andy Brockway]

We used 16 AWG wire, no problems. They give you four locations for the wires but only two actually work.

They do require square cut tubing and be well seated. If you leave them exposed and they get yanked on, the tubing and plastic connector WILL pull out of the valve. We lost one at a Regional last year, luckily they are interchangeable so we used the exhaust connector.