Johnny. I have reservations on getting parts from Bounds at this time. I'm not saying he's a bad vendor. But 3 years ago. I spent almost $500 ( As I recall on the amount. ) on fire suppression equipment from Bounds. It was about 3 months later in the GMC build that it was time to install them. One of them leaked down to zero on the gauge. while in the unopened box. So I called Bounds about the problem. He said that he had a problem with a sealent on some. He then said to send the leaking unit back with a check for $50. $25 to reseal/charge, and $25 for shipping back to me. Thus that ment that my total charges on a recharge of a new unit would be $75. Jim K at Applied sold the Bound's system to me. Jim K got wind of my problem. And took care of my problem at no cost to me. Bob Dunahugh