The JB Industries UR2-128 3/4 In, X 1/2 In, Reducing Flare Union is a flare union that is designed to reduce the amount of flare that is created when connecting tubing. This union is made from durable, high-quality materials and is designed to fit most tubing sizes. The JB Industries UR2-128 3/4 In, X 1/2 In, Reducing Flare Union is a flare union that is designed to reduce the amount of flare that is created when connecting tubing. This union is made from durable, high-quality materials and is designed to fit most tubing sizes.