Delivers powerful formulas that attack and eliminate odors at the source, automatically cleaning fixture surfaces, day and night. Easy in-line installation allows cleaning solution to reach the hard-to-clean areas, such as rim holes, ensuring that the whole fixture is cleaned. Easy drill-through chrome connection kit; no need to shut off water. Flexible programming options: up to 90 day refill cycle settings. Industry-leading battery life of up to 3 years. Kits contain: AutoClean[R] dispenser, mounting hardware, batteries, connection kit, and stainless steel connection tube.