onelinkmore UHF Female to Female Coupler CB Radio Adapter Joiner Coax Connector SO239 PL259 UHF VHF Antenna 4 Hole Flange Panel Mount Adapter Pack of 2

Have not used yet but they look of good quality bought to make a window pass-through havent had time to do it yet

What can be said about there simple but build is excellent cables thread on smoothly and long enough. I used two sets to build a wall pass through on a grounded copper plate worked out perfectly.

They seem to be the quality I expected in the price range. There are better made connectors to be sure, but for the purpose that I bought them for (an offroad trailer) they fit the bill. No noticeable signal loss.

Execelent

these work better than those barrel connectors and nuts. nice clean install if you use the correct hardware.

Works as expected. Mounted in a 1U blank using a step bit (5/8 final size).

Works great. looks like quality and fits properly.

I use these couplers to DIY build my own window multi coax feed-through panels. After installation, the panel is then grounded directly to nearby ground rod. In this particular case, the cost of parts and labor, provide for a better and stronger panel than the leading commercial manufacturers.

Works great

This is great for a pass-through that needs to be connectorized on both sides of the wall or bulkhead. It is also useful as a base connection for making your own UHF or VHF whip antennas.