Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-12D-HLN4, 12 VDC Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $44,844.00 – $170,982.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-12D-N4, 12 VDC Controls. NEMA 4 Watertight Electrical. $39,799.00 – $165,937.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-12D-N4X, 12 VDC Controls. NEMA 4X Exterior Installation Watertight Electrical. $40,506.00 – $166,644.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-12D-N7, 12 VDC Controls. NEMA 7 Class 1 Devision 1 Group B,C,D Watertight NEMA 4 $46,688.00 – $172,826.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-12D, 12 VDC Controls. NEMA 12 Rating. $39,488.00 – $165,626.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-24D-HLN4, 24 VDC Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $44,844.00 – $170,982.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-24D-HLN4, Pneumatic Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $47,026.00 – $173,164.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-24D-N4, 24 VDC Controls. NEMA 4 Watertight Electrical. $39,799.00 – $165,937.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-24D-N4, Pneumatic Controls. NEMA 4 Watertight Electrical. $41,981.00 – $168,119.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-24D-N4X, 24 VDC Controls. NEMA 4X Exterior Installation Watertight Electrical. $40,506.00 – $166,644.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-24D-N4X, Pneumatic Controls. NEMA 4X Exterior Installation Watertight Electrical. $42,688.00 – $168,826.35 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-2500-116-24D-N7, 24 VDC Controls. NEMA 7 Class 1 Devision 1 Group B,C,D Watertight NEMA 4 $46,688.00 – $172,826.35 Select options