... flexible, maneuvering portable way with high technology,high efficiency and quick action. spec of water mist system:PropellantCompressed atmospheric ... micronsWater/foam tank2 x 20 litre stainless steel water/foam tanks, sufficient for 120 seconds on constant ... solution3% AR-AFFF (alcohol resistant) foam solution, premixed in waterFoam expansion rateLow expansion rate, approximately 1:5Hose30 metre ½” ...