HVAC 1/4" Quick Coupler Charging Gaskets Hose Seals Refrigerant Replacement Gaskets Rubber Manifold Repair Sealing O Ring Kit

I went to use my AC gauge set and noticed something was missing. How, I don't know but, Amazon to the rescue. These fit my Harbor Freight cheap manifold set.

I have the Harbor Freight Pittsburgh gauges. I made a mistake one day and unscrewed one of the hoses with pressure in it and blew the seal out, never to be foundd again. I bought this item based on another review that said they fit HF gauges. They were right. It fit and works. I had to crank the threads a little tighter at first because the fresh seal is softer and needs to conform.

It works, get the job done but it doesn’t fit 100% good as it should.

These fit the Harbor Freight manifold gauge set. Easy replacement and now my truck has AC again! Highly recommend getting the pack of seals to keep in the gauge storage case along with an o’ring pick to aid with removing the old gaskets. Do be advised if there is a small brass piece in the center of your existing seal, it needs to be unscrewed with a small needle-nose plier first before replacing the seal.

Somehow, the O-ring popped out of my manifold gauge set from Harbor Freight where the hose connects to the gauge. I tried some o-rings I had on hand, but they didn't seal, so I bought these and they worked wonderfully. No leaks, so I'm back in business working on the car's A/C. They did just what they were supposed to do.

These are small and fall out easily when disconnecting hose. It says they are rubber but they are hard and shiny. They do seal but I see them as a one use disposable item.

I tried these in my yellow jacket, fieldpiece, and tradepro hoses. They do NOT fit any of those. I thought maybe they would stretch to fit tight when I put schrader depresser in, no dice. They may be good for harbor freight gauges, but not industry branded gauges.

So happy to find this product which eliminates the frustration of an unnescesary hiccup in an already tough job. Money well spent!