In line button drip emitter

An inline dripper comprising:

• a cylindrical body having a longitudinal axis and including at an upper end thereof an attachment surface perpendicular the longitudinal axis;
• the attachment surface shaped and sized for attachment to an inner wall of an irrigation conduit;
• a first wall surrounding an outlet chamber on the upper end of the body;
• an upper edge of the first wall included in said attachment surface;
• a second wall below the first wall surrounding a regulator chamber;
• the second wall including an opening between an outside surface of the cylindrical body and the regulator chamber;
• a portion of the first wall above the opening being thicker than a portion of the second wall below the opening;
• a hollow shaft passing through the first wall from the attachment surface to the opening in the second wall, said hollow shaft separated from said outlet chamber by said first wall;
• a first set of teeth projecting laterally outward from the outside surface of the cylindrical body with spaces between teeth of the first set of teeth facing the lower end of the body, the lower end opposite the upper end;
• a cap including a cylindrical hollow fitting over the lower end of the cylindrical body;
• the cap including a second set of teeth projecting inward from a side wall of the cylindrical hollow with spaces between teeth of the second set of teeth facing upward when the hollow is positioned over the lower end of the cylindrical body;
• and
• wherein when said cap is positioned over said lower end of said cylindrical body, said opening provides fluid communication between said regulating chamber and a space between said first set of teeth and said second set of teeth.