Review on Atwood 91857 Drain Plug Pack by Nick Howard

This connector will not fit Atwood heaters. I kept trying to screw the filament into the hole of the heater and finally gave up in frustration. Left the campsite with no working heating and was unhappy. When I got home I bought a 1/2" 14 NPT cap and tried unsuccessfully to screw the cap in. Went to an RV shop and bought two official "Atwood" caps which screwed in the cap with no problem .That's wrong (Not sure about the amount of threads.) If you want a lot of headaches, buy this product, they don't fit.Really deserves zero stars.