Here is Akron brass foam eductor with top proportioned which allows you to induct fire foam into your hose stream. The top dial allows you to determine the foam percentage you would like mixed into your hose stream. If you have any questions feel free to ask.This item is in the category "Collectibles\Historical Memorabilia\Firefighting & Rescue\Hoses & Nozzles". The seller is "fire-emssupplies" and is located in this country: US. This item can be shipped to United States.