**NOTE: Pre-Taped option comes from BVV Pre-taped with Yellow UL Listed Gas PTFE Tape on the Male NPT threads ONLY for a +0.50c charge per male npt end. (JIC Threads DO NOT need to be taped.) The 37 degree JIC connection will create a seal by compressing the flared end against an opposite female/male flared connection. JIC connections do not require thread sealant because they seal off the flared surface of the fitting JIC Fittings are also not the same size as NPT fittings but do have the same size nomenclature. When connecting JIC fittings to one another it is recommended by BVV to use 2 wrenches - 1 to tighten the fitting and 1 to hold back against the force applied to create resistance and ensure a better seal. A MJIC X MNPT connector will convert and adapt a Female NPT connection to a Male JIC connection or vise-versa. These MJIC x MNPT stainless steel tube fittings are the industry standard for extraction systems and allow a multitude of configurations on any system.