Review on Discover the Perfect Joywayus Female Bulkhead Fitting Coupler for Your Plumbing Needs by Enrique Espinoza

On both the originals and the two replacements the internal threads were so bad that I couldn't easily fit a 1/4" NPT threaded cone nipple. One didn't even start and the rest did barely got it. Tried 3 different known quality 1/4" fittings to make sure it was the problem and not the fittings. Otherwise it's a solid and functional unit. Shame more attention isn't paid to the to keep the beginning of the stream clean.