This fitting is 1/8 NPT to 1/8 inch OD tubing compression. To be used with MSCNNR2/026 or similar tubing. Manufactures recomendation for tightening the compression fitting on the nylon line is, with nut hand tight on fitting, insert tubing until it bottoms in fitting. Tighten one complete turn with a wrench (360 deg). Tubing end must be cut square (maximum 15 deg) before installing in fitting.
A thread sealant is required on all NPT threads. We recommend Loctite 567