The Indian FSV500 fedco smoke chaser collapsible bag is an economical backpack style fire pump. Features a 5 gallon heavy duty vinyl bag that is extremely puncture & abrasion resistant. All brass hand pump is Complete with combination nozzle & positive shut-off. Military spec shoulder straps equipped with holding clip. Bag is collapsible, rolling up to fit in small areas when not in use. Shoulder Harness straps offer the best in comfort. Center cinch strap distributes weight efficiently & comfortably. Seams are electronically sealed & reinforced at all stress points. Dual nozzle changes quickly from stream to spray without tools.