TAILONZ PNEUMATICPneumatic Fittings 3/8" OD Push to Connect Fittings 5 Manifolds 5 Elbow 5 Elbow 5 Tee 5 Straight (Pack of 20)

Q: Will these work with other manufacturer's nylon 1/2" air system hose?

I used it on other manufacturers hose it fit, but it it actually junk it had leaks and I tried a lot of them. Don’t waste your money you will be very disappointed

Q: Do these still arrive damaged/broken? Have whatever shipping/packaging/manufacturing issues been fixed?

I have ordered , at different times various sizes. I haven't ever received damaged or broken. Their made pretty well. But I have learned that anything can get damaged during delivery. Those DELIVERY guys can be brutal.