This unit offers the same durable features as the regular forestry pump with the added benefit of a foam educting attachment and air aspirating nozzle. Each time the pump is charged 1% of foam concentrate is educted into the water from the one pint reservoir bottle. This eliminates the need for batch mixing when Class A foam is required. Manufactured from strong polyester fabric, protected by a thermoplastic polymer. 3” wide fully padded, adjustable shoulder and sternum straps. 1” wide carry handle on top of the backpack. Backpack has a capacity of 5 gallons (19 L). Dimensions (empty) 25” H x 16.5” W. It weighs approximately 40lbs (18.2 kg) when full. 4” filling opening includes removable debris screen and lid with retaining strap. 3⁄4” GHT hose connection located at bottom center of backpack.