48 oz, ready to spray hose end, wet & forget outdoor spray, same great results as wet & forget outdoor with a hose end high capacity sprayer, goes to work cleaning porch steps, window ledges, boat seats, play equipment or any outdoor surfaces plagued with moss, mold, mildew & algae stains, bleach free, ph close to neutral, spray & leave application, no scrubbing or rinsing, residual cleaning up to a year or more. Sprays up to 30+ feet, cleans up to 2,000 sqft.