This product from BlueDevil Products is a 4.5oz A/C Stop Leak and Conditioner, with a model number, manufacturer part number and dimensions of 2.25 x 2.25 x 5.5 inches. It is not discontinued and has an item weight of 7.2 ounces.  The product is ideal for those looking to stop leaks in their air conditioning system, while also conditioning it to prevent future issues.