Uniweld Products VV1 Uni Weld Fitting Review

Time will tell if this holds up but so far it's working great. Mandatory for refrigerant R410A. Has a window to see vapor while charging.

This tool is essential, I have used it on the r22 and 410a, topping up fluid with it makes the job a lot quicker. I have no complaints.

First I bought a pressure gauge and hoses to fill the refrigerant air conditioning system. I was advised to use this vapor extender when adding freon. It worked.

Excellent Product! Doesn't evaporate so much liquid that you can see if you're leaking too much or not and adjust your charge rate on the fly. The less your valve is open, the less liquid you will see. A very useful tool!

Terrible product. Does not turn liquid refrigerant into vapor when charging the system. Thank goodness it has a sight glass to confirm it's not working! Follow all product instructions carefully, so avoid user error. I bought another product from a different manufacturer that works as expected. Don't waste your money and risk damaging your compressor.

Very impressed with the quality. Looks a lot better than in the picture. There is safety glass on both sides so you can go to the other side. OK. Looks very durable. So far it has been used in 4 HVAC systems to fill both R22 and R410a. Works perfectly. The pressure is adjusted quickly, instead of pumping liquid into the vapor line, the refrigerant is already in vapor form. However, you cannot go crazy and open the valve full throttle and dump the refrigerant into the system as this will only…