Bunkhouse travel trailer. Drain line under bathroom steps, rear passenger axle. Blue line with a cap that's missing. What size cap for the plug? Thanks.
It's either 1/2 or 3/8 NPT. But check with a local dealer, they probably have a hundred of them in a bin somewhere.
X2, but I have never seen them sized at 3/8”.
You need a 1/2” NPT/FIP cap. “FIP” stands for female iron pipe. These threads will be “NPT” which is the American National Pipe Thread standard designation for tapered threads.
Bruce
__________________
2016 Rockwood Windjammer 3029W Diamond Edition
2015 Chevy 3500HD LTZ 6.0 Crew Cab 4x4 Long Bed 4.10:1 SRW
Linear Mode
