Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-12D-HLN4, 12 VDC Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $23,883.00 – $82,918.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-12D-N4, 12 VDC Controls. NEMA 4 Watertight Electrical. $18,838.00 – $77,873.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-12D-N4X, 12 VDC Controls. NEMA 4X Exterior Installation Watertight Electrical. $19,545.00 – $78,580.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-12D-N7, 12 VDC Controls. NEMA 7 Class 1 Devision 1 Group B,C,D Watertight NEMA 4 $25,727.00 – $84,762.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-12D, 12 VDC Controls. NEMA 12 Rating. $18,527.00 – $77,562.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-24D-HLN4, 24 VDC Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $23,883.00 – $82,918.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-24D-HLN4, Pneumatic Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $26,065.00 – $85,100.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-24D-N4, 24 VDC Controls. NEMA 4 Watertight Electrical. $18,838.00 – $77,873.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-24D-N4, Pneumatic Controls. NEMA 4 Watertight Electrical. $21,020.00 – $80,055.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-24D-N4X, 24 VDC Controls. NEMA 4X Exterior Installation Watertight Electrical. $19,545.00 – $78,580.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-24D-N4X, Pneumatic Controls. NEMA 4X Exterior Installation Watertight Electrical. $21,727.00 – $80,762.74 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-800-116-24D-N7, 24 VDC Controls. NEMA 7 Class 1 Devision 1 Group B,C,D Watertight NEMA 4 $25,727.00 – $84,762.74 Select options