I think most of them are crap...my first one failed...noticed water dripping from corner of trailer...was spraying inside and luckily headed towards the corner. Dealer replaced it. Now a year later, noticed the same thing the last time I used it. I'll replace it with something better (brass maybe) this time and hope it lasts. Great idea and helpful when it works.
Pull-Rite 16K Super 5th
2014 Rockwood Signature Ultra-Lite 8289WS
2011 Chevy 2500HD - DuraMax (Just over 5000 miles now!)
Nights camped in 2014 - 21