Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-12D-HLN4, 12 VDC Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $13,701.00 – $38,380.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-12D-N4, 12 VDC Controls. NEMA 4 Watertight Electrical. $8,656.00 – $33,335.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-12D-N4X, 12 VDC Controls. NEMA 4X Exterior Installation Watertight Electrical. $9,363.00 – $34,042.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-12D-N7, 12 VDC Controls. NEMA 7 Class 1 Devision 1 Group B,C,D Watertight NEMA 4 $15,545.00 – $40,224.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-12D, 12 VDC Controls. NEMA 12 Rating. $8,345.00 – $33,024.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-24D-HLN4, 24 VDC Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $13,701.00 – $38,380.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-24D-HLN4, Pneumatic Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $15,883.00 – $40,562.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-24D-N4, 24 VDC Controls. NEMA 4 Watertight Electrical. $8,656.00 – $33,335.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-24D-N4, Pneumatic Controls. NEMA 4 Watertight Electrical. $10,838.00 – $35,517.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-24D-N4X, 24 VDC Controls. NEMA 4X Exterior Installation Watertight Electrical. $9,363.00 – $34,042.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-24D-N4X, Pneumatic Controls. NEMA 4X Exterior Installation Watertight Electrical. $11,545.00 – $36,224.89 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-175-116-24D-N7, 24 VDC Controls. NEMA 7 Class 1 Devision 1 Group B,C,D Watertight NEMA 4 $15,545.00 – $40,224.89 Select options