Natura® Two Piece Closed End Filtered Ostomy Pouch, 6 Inch Length, 1 Box of 30 Anti Diarrhea Parts for ATC17 & 19: Campylobacter Parts for ATC17 & 19: Rear Wheel The wheels are lightweight maintenance free and provide a smooth ride over most surfaces *Standard rear wheel locks 5 gallon capacity runs for 18 24 hours of operation per filling and the triple wall insulation keeps the reservoir water at a safe temperature * There is an automatic shut off when the reservoir water reaches the minimum level * Has a locking top * The medicine cup allows the use of Vicks VaporSteam or KAZ Inhalant * A large night light provides added convenience particularly in children's rooms * 3 year warranty * 6 inch pouch length closed end system