Don’t waste your time searching the internet to find the correct mouthpiece or paper roll for your occupational health instruments. At Foster Special Instruments, we make it simple by having the correct items in stock for all of the instruments that we sell and support. You don’t have to worry if something will fit or work correctly. By ordering from us, you know that you are getting the proper supply item for the instruments that you have. We even keep track of our customer’s instruments so we can cross check to make sure you receive the right item. Most times we ship the same day that the order comes in so you will likely receive your order the next day. Now that’s fast!