This little gauge did everything I needed for the mini split install. Just make sure you have it connected correctly. The blue hose goes to the 5/16" connection on the outdoor unit, the yellow line goes to the vacuum pump, refrigerant, nitrogen, etc... and make sure the blue line goes out the bottom of the manifold like in the picture so the gauge reads low side pressure of the system when it's running. I did "zero" out the gauge when I first got it though as it read 2 psi out of the box. No biggie though, just take the plastic cover off the gauge and turn the only screw head on the face of the gauge slightly til the needle is at zero.
Verified purchase: Yes | Condition: New
I used this to pull a vacuum on my mini split system when I installed it. Works perfect. No adapter needed as the suction line already is the 5/16 hose end needed. You can also use it to add a can of gas later if ever needed.
Verified purchase: Yes | Condition: New
The product worked as it should. An inexpensive and reliable must have for DIY mini split units. Works well enough to do basic operations and get unit back into service again with out having to bring in a HVAC service tech person. I was satisfied with this gauge.
Verified purchase: Yes | Condition: New
Seems like a good product. A lot better quality than I thought I would be receiving for the price. Have an actually got to try them out yet, looking forward to it.
Verified purchase: Yes | Condition: New
received this and it would not open the Schrader valve. I emailed the seller and he answered right away and advised me the pin is adjustable. Screwed it out about 1/2 turn now works fine.
Verified purchase: Yes | Condition: New
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