Review on Mastercool Blue R410A, R22, R404A 2-Way Manifold Set with 3-1/8-Inch Gauges and 60-Inch Hoses by Shah Bell

I bought the cheaper Mastercool instruments first but decided to go back and buy these instead. The price difference makes up for the fact that it comes with hose assembly valves and the added benefits of a sight glass and carrying case. So far I haven't had any problems with them. No leaks, they worked straight away and proved accurate. These are for casual reading - if you're a techie you'll want to get the more expensive ones and all the bells and whistles that come with them. But for home use they are perfect. Added bonus: many of these tools appear to be made in the USA, so that's nice to see.