Delivers 6 minutes of uninterrupted: hands-free flushing without costly plumbing. Completely portable: the gravity-fed flow begins immediately when the nozzle pull strap is removed. The lightweight designs gravity-fed flow begins immediately when the nozzle pull strap is removed. Fendall Porta Stream I is supplied with either 70 oz. (2.07L) of Sperian Concentrate which: when mixed with tap water: provides 6 gallons (22.7L) of solution: or 8 oz. of Sperian Water Additive: enough for 14 - 16 gallons of water. This portable unit may be mounted on a wall: mobile cart or mobile stand. Can be easily and affordably placed near most workplace hazards with single bracket mounting device or transported with optional universal cart or universal stand. Molded handle accepts hanging bracket for vertical or horizontal surface installation.