MODULAR TYPE FRL UNIT 20 series - Mini Type (6) 53 series (6) 59 series (9) 70 series - High Flow (9) 89 series (7) 90 Series - High Flow (8) Regulator (9) Automatic Drain (2) Air Clean / Dryer (16) High Flow Pneumatic Filter 160 series (2) Gauge (8)