Not eligible for free shipping. Please contact us for a shipping estimate, or we will reach out to you after you place your order. The CENTREX 2000 NE capacity is 3-5 residential or 6-8 weekend/vacation use. It is the non-electric version of the Centrex 2000 which is fitted with a 4" vent stack. Installation of a 12 Volt fan is optional, but it is recommended for heavy seasonal, residential use, or where the installation is particularly subject to downdraft, being surrounded by high trees or hills. We also recommend the fan if you need to install a bend in your vent stack. WHY CHOOSE A SUN-MAR TOILET Sun-Mar toilets are the ultimate waste treatment solution Easily installed anywhere without the need for any plumbing connections, Sun-Mar toilets surpass traditional systems when it comes to protecting public health and the environment. When deciding which treatment solution is best for you it is very important to understand how various systems compare. Most waste treatment systems rely on bacteria to breakdown organic waste. This process is known as "composting". Traditional systems typically rely on a type of bacteria that survives in the absence of oxygen. This bacteria is called "anaerobic". Anaerobic bacteria work very slowly at breaking down waste and produce very foul odors (sewer gases). Sun-Mar units are engineered to support a type of bacteria that requires oxygen to survive. This bacteria is called "aerobic". Aerobic bacteria work very quickly at breaking down waste and produce no odor. This allows Sun-Mar units to be much smaller and more cost effective than traditional systems. Whether the treatment system supports aerobic or anaerobic bacteria, it is extremely important to choose a system which fully composts waste to protect public health and safety. Quite often companies will use the term "composting" to describe their systems, although they do not "fully compost" waste. This is particularly true of urine separating toilets which merely collect waste or provide only partial treatment. These systems leave the homeowners with the daunting task of regularly having to dispose of raw solid and liquid waste. Fully composting waste is very important for public health & safety and the environment. This is why comprehensive evaluation and certification by NSF International, a Public Health and Safety Organization, is crucial. It ensures products perform as claimed and meet strict public health standards for design and performance. Although ANSI/NSF standard 41 has been around for over 25 years, Sun-Mar is one of only 2 companies certified and listed by NSF international. Many regulators require this certification. Click to view the Official NSF Listing. TOILET SOLD SEPARATELY These are too heavy for UPS shipping and have to go by truck so they're not included in our free shipping over $100 program. Shipping rates very by location, please call or email for a quote.
