Instruct: Classify Amazon reviews into positive or negative sentiment
Query: adaptor not universal

The unit itself is what I was looking for with easy change out of filter but the plastic adaptor it comes with is pipe thread making it very difficult to convert to standard thread.This unit is for a water line not a gas line.The last time pipe thread was used for water lines was about 60 years ago.A standard fitting should also be included in the instalation kit.