What is the coverage area of the Aqua Joe AJ-MSSBM? The Aqua Joe AJ-MSSBM covers a maximum area of 3740 sq ft. Related articles Is this sprinkler's base stable? How do I adjust the spray and coverage for my AJ-MSSBM? How should I prepare materials before using my Cordless Paint Sprayer? Aqua Joe® AJSGH25 Garden Hose How do I adjust the spray and coverage for my AJ-MSSBM6?