The J4000 is the most powerful model designed for commercial purposes. Known as a durable "workhorse" in the industrial fabric and garment trades, the Model J4000 is an essential tool in a multitude of applications ranging from removing wrinkles to retouching drapery to installing carpet.b Water tank holds 1 gallon. Has a sight guage to see water level. 1 hour and 45 minutes steam time per tank. 5-1/2 Ft. flexible hose. Has standby and steam settings.Ready to steam in 2 minutes. On wheels. 3 year warranty. Replacement parts available. 1 per box.