The entire Porta-Potti line gets new and improved styling! Porta-Potti Models • Refreshed, modern appearance • Cleaner seat and cover design • More-ergonomic Carrying Handle • Lid Latch now standard • Redesigned Valve Handle, Fill Cap & Pump Things that haven’t changed: • Same industry-leading performance • Fresh- and waste-water tank sizes • Exclusive, rotating Pour-Out Spout • Deodorant sample included • Porta Potti® is the original and best! Description: Porta-Potti 550P SKU: 92853 Fresh Water Tank: 4.0 gallons Waste Water Tank: 5.5 gallons Average Flushes: 56 Suffix in model number reflects pump type: B = Bellows, P = Piston