For assistance, call us at541-689-5851 or email us atinfo@oti.cc Home Digester Covers Digester Mixers Heat Exchangers Accessory Equipment Contact Us Quality Anaerobic Digestion Process Equipment since 1979. Digester Covers Digester Mixers Heat Exchangers Digester Covers Fixed, Floating, Gasholder, and Buoyant covers of steel or stainless steel materials. Proven Performance and Unsurpassed Quality OTI: The leader in Digester Cover Design and Supply Stronger, longer-lasting Digester Mixers for 24/7 service Fast custom Heat Exchanger design, configuration and sizing assistance All facets of equipment manufacturing including engineering support, equipment design, product fabrication and finishing, testing, shipping and field services are provided by full-time OTI employees Contact us for your Anaerobic Digester Equipment Request Information Name* Email* Company Name* Phone Number* Message* * required fields