Sand screen joint with producible check ball

A joint for a sand screen assembly, comprising:

• a mandrel disposed inline with a screen jacket, wherein a first passageway extends through the mandrel to an inner circumferential surface of the mandrel, wherein a second passageway extends through the mandrel to the first passageway, wherein a first seat is formed in the first passageway, wherein a third passageway extends through the mandrel, and wherein a second seat and a stop are formed in the third passageway;
• a retainer disposed in the second passageway, wherein the retainer comprises a piston, and wherein a diameter of the piston corresponds to a diameter of the second passageway;
• a shear member affixing the retainer to the mandrel;
• a first check ball disposed in the first passageway, wherein the first check ball is constrained by the first seat and the retainer, and wherein a diameter of the first check ball is less than a diameter of the first passageway at the inner circumferential surface;
• and
• a second check ball disposed in the third passageway, wherein the second check ball is constrained by the second seat and the stop.