Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-12D-HLN4, 12 VDC Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $13,089.00 – $34,207.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-12D-N4, 12 VDC Controls. NEMA 4 Watertight Electrical. $8,044.00 – $29,162.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-12D-N4X, 12 VDC Controls. NEMA 4X Exterior Installation Watertight Electrical. $8,751.00 – $29,869.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-12D-N7, 12 VDC Controls. NEMA 7 Class 1 Devision 1 Group B,C,D Watertight NEMA 4 $14,933.00 – $36,051.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-12D, 12 VDC Controls. NEMA 12 Rating. $7,733.00 – $28,851.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-24D-HLN4, 24 VDC Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $13,089.00 – $34,207.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-24D-HLN4, Pneumatic Controls. Hazardous Location Class-1 Devision-2 Group C&D (Z-Purge System) $15,271.00 – $36,389.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-24D-N4, 24 VDC Controls. NEMA 4 Watertight Electrical. $8,044.00 – $29,162.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-24D-N4, Pneumatic Controls. NEMA 4 Watertight Electrical. $10,226.00 – $31,344.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-24D-N4X, 24 VDC Controls. NEMA 4X Exterior Installation Watertight Electrical. $8,751.00 – $29,869.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-24D-N4X, Pneumatic Controls. NEMA 4X Exterior Installation Watertight Electrical. $10,933.00 – $32,051.77 Select options Great Lakes Air, GPS Heatless Regenerative, GPS-125-116-24D-N7, 24 VDC Controls. NEMA 7 Class 1 Devision 1 Group B,C,D Watertight NEMA 4 $14,933.00 – $36,051.77 Select options