250.00 bought 3 ac. 1 r-15 champ,321 kellogg,sears ind 2stsge 1981. all had 80 gallon tanks. wired the sears and kellogg fired right up. put fresh top end on kellogg and for the first time pulled head on sears took my time cleand and beaded head cleaned all reedvalves **** load of them, any way sears went from 20 min, to 7 1/2 from o to 175 what a nice quiet machine im thinkin this will be my main ac, iguess cambell hausefield made the pumps tank is in very good cond sorry for being long winded hope yous enjoy the picks