Up for sale is this model marine water cooled muffler. It was originally custom built for a project never completed that was to use a small Cameron marine Gas engine. The muffler is welded aluminum & tubing is aluminum, brass, & steel. Years ago I ran a similar one on a .19 engine & found it to be very effective & great for a scale installation. Water from head is piped into muffler for cooling, & can be adapted to other engines. Thank you for viewing this item, Please e-mail me if you have any questions. Please email with your zip code for a shipping quote Prefer payment by money order & will accept checks, which must clear before shipping. If payment by Money Order will ship on day of receipt of payment. Buyer to pay packaging & shipping costs, iThis item is located in Pequannock New Jersey & is also available for local pickup