We are always adding New Items in Our Hot Deals Tab!!! Edit My Account | Order History | View Shipping Costs | View Shopping Cart | Login Shopping Categories > Adapters > Male End Adapters 3/8-Male to 9/16-Male AdapterOne side has a 3/8 male thread with a viton o-ring The other end uses a 9/16 male thread Piranha's Price: $4.99