If you're using the Ultima plug, I'd get the Ultima pumps. Your supply house can get them for you if they don't have them in stock. If you don't operate a pro shop, ask your local pro shop to order them for you. They will want to make a profit on the order, but at least you'll have the right pumps. If you don't do a lot of plug work, you really don't need the pumps. Use measuring spoons or cups, just make sure you maintain the 3:1 ratio. -- JohnP