I went with these over the PEX brand to save a couple bucks. However, I've had a tremendous fallout rate - probably 1 in 4 have broken either when I screwed the drywall screws into them (this is partly my fault for using a cordless drill on a torque setting greater than 5) or when inserting the copper tubing.
I resorted to deforming the tubing slightly with a pair of pliers. This isn't ideal if the tubing were carrying an sort of fluid, but I'm using it as an electrical bus bar, so structural integrity isn't as important.
Bottom line, I would go with the PEX brand in the future.
Hayden 390 Oil Cooler Line Connector (Transmission)
Dec 27, 2016
Practically required for proper trans cooler install
I bought these to install a trans cooler in a GM vehicle after I was unable to find the proper adapters at my local hardware store. They're a bit overpriced, and they don't include the hose caps as shown in the photo. But they make installation much easier, at least adapting the factory hard lines to the cooler hoses.
Performs exactly as advertised. I saw some reviewers complaining that this didn't fit their particular vehicle's wiring. Of course it doesn't; this battery is used across various applications, so the battery-side wiring harness must be transferred from the old battery (a really simple process).