Implementations of a gas leak indication system may include a ring including a flange extending from an interior surface of the ring, the flange including two seal channels on either side of the flange, and the ring including a flow opening extending into a projection extending from an exterior surface of the ring; an extender threadedly coupled into a side opening in the projection, the extender including a flow opening therethrough; an indicator threadedly coupled onto the extender, the indicator including a flow channel extending therethrough; and a cap coupled over an end of the indicator by a friction fit.