Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-12D-HLN4, 12 VDC Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $9,820.00 – $22,389.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-12D-N4, 12 VDC Controls. NEMA 4 Watertight Electrical. $4,775.00 – $17,344.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-12D-N4X, 12 VDC Controls. NEMA 4X Exterior Installation Watertight Electrical. $5,482.00 – $18,051.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-12D-N7, 12 VDC Controls. NEMA 7 Class 1 Devision 1 Group B,C,D Watertight NEMA 4 $11,664.00 – $24,233.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-12D, 12 VDC Controls. NEMA 12 Rating. $4,464.00 – $17,033.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-24D-HLN4, 24 VDC Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $9,820.00 – $22,389.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-24D-HLN4, Pneumatic Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $12,002.00 – $24,571.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-24D-N4, 24 VDC Controls. NEMA 4 Watertight Electrical. $4,775.00 – $17,344.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-24D-N4, Pneumatic Controls. NEMA 4 Watertight Electrical. $6,957.00 – $19,526.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-24D-N4X, 24 VDC Controls. NEMA 4X Exterior Installation Watertight Electrical. $5,482.00 – $18,051.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-24D-N4X, Pneumatic Controls. NEMA 4X Exterior Installation Watertight Electrical. $7,664.00 – $20,233.94 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-25-116-24D-N7, 24 VDC Controls. NEMA 7 Class 1 Devision 1 Group B,C,D Watertight NEMA 4 $11,664.00 – $75,089.72 Select options