Check the listing for details. CAMPLUX Nano 3 Max Portable Gas Water Heater & Pump Rechargeable Shower System. Color: Silver, Condition: Open box. Listed at 299.00 USD. Versatile for All Outdoor Needs - This portable camp water heater delivers instant hot water for cleaning, dishwashing, and showering. It delivers a powerful 20,500 BTUs with a quick temperature rise of 45℉(25°C) Camping with More Portability - This portable hot shower heater weighs 13.7 lbs with 2 durable handles, perfect for on-the-go camping, fishing, hiking, and hunting. The compact water heater doesn't compromise on power or efficiency, making it a must-have for your outdoor adventures Rapid Charging - Built-in 4,000 mAh batteries, allow for smooth 1.5 hours operation when fully charged. It supports simultaneous charging and discharging, reaching a full charge in 3 hours. To keep the battery in the best condition, it is recommended to charge the device to 100%.