Review on 🔵 Mastercool 89660-PRO5 R134a Manifold Gauge Set in Blue by Jonathan Lamp

I bought these sensors and found them to be of good quality. after trying to use. The rubber O-rings on the lines broke or swelled, causing a problem with refrigerant addition. I see another user posted a review with the same problem. tried to use it for . It's like the machining is too deep to snap onto the car's plug. I had to use my cheap high side load coupler to use these sensors. Not sure if Mastercool will replace the seals under warranty or anything. I would choose a different brand if they didn't make a change.