For over 40 years, Bio-Tab has been a trusted septic treatment solution for professionals who believe problems should be solved at the source. Designed to work from the bottom up, Bio-Tab delivers beneficial bacteria that support natural waste digestion, help reduce solids buildup, and promote long-term system performance. Its time-release formulation provides consistent results without disrupting system balance, making it a reliable choice for residential, commercial, and municipal applications. Toi-De-Fresh delivers dependable odor control for portable restrooms and holding tanks in demanding environments. With clean, fresh fragrances and a stable liquid profile, Toi-De-Fresh performs consistently in both small and large tanks. Available in concentrated and ready-to-use options, including formaldehyde and non-formaldehyde formulas, it gives operators flexibility while helping maintain a positive user experience. These proven products are backed by Century Chemical Corporation, proudly manufacturing in Elkhart, Indiana since 1926. In 2026, Century celebrates its 100th anniversary, marking a century of practical innovation, consistent quality, and solutions professionals trust to perform!
Amthor International
Amthor International, a fourth generation family-owned company, is the nation’s largest and most diverse manufacturer of tanker trucks. Our products include a variety of tank trucks for the propane, refined fuel, portable restroom, vacuum and septic industries. Each tank is custom built right here in America by our dedicated workers. Each of our products can be fully customized to meet all of your business’ needs. We have an array of tank options that can increase the safety and efficiency of your tank. Amthor tanks are made in the USA and manufactured in Gretna, Virginia. Let us know how we can help you!