The CENTREX 2000 NE (Non-Electric) is the non-electric version of the Centrex 2000 which is fitted with a 4″ vent stack. This high capacity composting unit is perfect for medium to heavy seasonal or light residential use. The 2000 NE allows for both a longer composting cycle, and larger waste volumes. What flush toilets can the 2000 NE use? The 2000 NE may be used with one or more 1-pint, Ultra-low flush toilets, purchased separately. Capacity The listed capacities refer to the amount of people, on average, using the unit per day. Residential/Continuous 3 adults or families of 5Seasonal/Vacation 6 adults or families of 8 Electrical Specifications As the CENTREX 2000 NE does not have a built-in heating element or fan assembly, click here for information on the optional 12 volt fan*. The installation of a 12 Volt fan is optional, but it is recommended for heavy seasonal or residential use Vent Pipes and Drains All Sun-Mar products must be properly vented per the guidelines present in the unit’s owner’s manual. Vent Pipe 4″ Thin-wall PVCDrains 1” OD Recommended in all applications. Weight and Dimensions Measurements given in pounds (lbs) and inches. Height: 26 1/2″Width: 26 1/2″”Length: 45 1/2″ (49″ to turn handle)Weight: 63 lbsShipping weight: 109 lbsShipping carton dimensions: 35″ by 29″ by 46"