DOSATRON D25RE10 8.8 GPM 1:33 1:10 in used condition with quite a few scratches to the body of the unit but functional.This is a used Dosatron. These were used in a carwash until the carwash updated equipment. They have been completely disassembled and cleaned. All worked fine when everything was updated. I would suggest replacing internal seals in the near future. All is sold at Dosatron. This particular unit will need a check valve replaced in the tip. It can be purchased online for just over $9 and the part number is PDI054. A picture of the part that I am talking about is the last picture. These were used to send soap to various machines. If you have any questions or need any certain parts for one feel free to send a message.