This Duff Norton Rotary Union is a great addition to your industrial fittings and adapters collection. With a brand name that speaks for itself, you can trust the quality of this item. Made in the United States, it is designed to meet the demands of any industry. This particular model, the L5200PT-LT 780359C, comes in P, S, and RS type, making it versatile for any hydraulic, pneumatic, pump, or plumbing system. It is important to note that this is old stock, which means it may have been discontinued or replaced by a newer model. However, this does not affect the functionality of the item.