I'm working on a Carrier 50TFQ006 heat pump package unit. Found unit out of r-22. Found major leak on the suction line. Repaired and pressurized with nitrogen till monday. This unit has two factory installed filter driers (the small copper cylinder type) in their respective liquid line each with a check valve brazed in next to it. These lines run vertically and are all compact with the condenser and evaporator headers. I may be able to replace one with a c-163s with some repiping but there isn't even room to replace the other with a c-083s. Does anyone have any recommendations?