The model is a 7553-60 with a 7016-20 head. It will come with 48 feet of Masterflex the dosing tube. Flows between 20mls to 640mls an hour. I tested it on my calcium reactor and it works great but I think im going to go with a different dosing method. The only issue with this unit is a can only run to 80%. It runs perfectly at 80% and below which is more than enough for most tanks out there. If run any higher it will blow a fuse but 3 extra ones are included just in case you run it too high on accident. Asking $150 shipped
