I am looking for a brass T fitting with barbs and a hose thread much like found on an automobile coolant flush kit. Looking for an easier way to winterize my Yanmar 3YM20 engine than removing the seawater cooling line from the strainer each year to suck up RV antifreeze from a 5 gallon bucket. With an inline T fitting I could just remove the cap and screw on a short piece of hose onto the fitting. Any ideas on where I can find such a brass fitting? Thanks