Review on Astro Pneumatic Tool 7856 Air Powered Universal Cooling System Pressure Tester by Daniel Drury

How come I've been manually bleeding cooling systems all these years? I have a Matco Master cooling system tester in store and it works great, but I saw this and decided to try it, sounds great right? Well, none of my adapters will fit this quick connector, but I removed the tubing from my hand pump and plugged it straight into this block. Forget it, never go back to a handheld device. It takes about a second to build pressure, which is great! It does an excellent job of draining water from the cooling system. Excellent goods! Highly recommended!