- 500 GPM DARLEY WATER PUMP - PUMP MODEL - HM - 3,000 GALLON POLY WATER TANK - RIGHT SIDE PORTABLE WATER TANK HOLDER - TOMAR LED EMERGENCY LIGHTS - WHELEN SIREN CONTROL - LED TANK LEVEL INDICATOR - DUAL AIR HORNS - EXHAUST BRAKE - AXLE DIFF LOCK - AIR RIDE SEAT - 29 FT LONG - 9 FT 10 IN HEIGHT - FRONT GAWR 14,600 LBS - FRONT TIRE SIZE 12R22.5 - REAR GAWR 38,000 LBS - REAR TIRE SIZE 11R22.5 - AXLE RATIO 5.57