May I offer you some advice on this kit? I purchased one of their kits 6 years ago and I have never liked it. These morons used black o-rings on the expansion valve 2 of them and they leaked from day 1. I sent it back to them, they kept it 2 weeks promised it was fixed and they lied, they never ever broke the case apart to fix the leaking o-rings, as it is a PITA. I finally took apart the case and fixed it. Maybe they use green o-rings now. I would check before it's installed and won't hold a vacuum.