Slide coupling fitting for connecting conduits

A slide coupling fitting for connecting tubular conduits, comprising:

• a tubular body having a central passage defining a central axis, a first open end, an external threaded section on an exterior of said tubular body near said first open end, and an opposing second open end;
• a tubular sliding coupler having an internal diameter larger than an external diameter of said tubular body, and being connected to said first open end of said tubular body;
• said tubular sliding coupler having an internal threaded section adjacent to an inner end which is closer to a longitudinal center of said tubular body, and a smooth interior at an opposing outer end for slidably engaging a first tubular conduit;
• said internal threaded section being complementary to said external threaded section of said tubular body for mutual engagement;
• and
• a seal groove extending about said central axis and a seal member which is disposed within said seal groove and extends therefrom to sealingly engage an interior periphery of said tubular sliding coupler;
• said seal groove being disposed between said external threaded section and said first open end, wherein said sliding coupler can be moved along said tubular body such that the entirety of said internal threaded section extends beyond said external threaded section of said tubular body in a direction toward said longitudinal center of said body.