In case you made a decision to use gentle tubing in step one, then you can use two kinds of fittings, barbed fittings or compression fittings. Alternatively, in the event you decided to use tricky tubing in the first step, You'll be able to use push-in fittings or compression fittings. http://lukaslaiqy.link4blogs.com/11583841/not-known-details-about-tubing-fitting