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Benchmark® Platinum Optimize Your Hydronic System for Maximum Efficiency and Savings AERtrim Peak Performance Dual Returns Maximum Efficiency onAER Predictive Maintenance AERCO’s patented O 2 Trim technology self-adjusts the combustion process to deliver optimal O 2 levels keeping your boiler operating smoothly at peak performance. Enables design and application flexibility — increases efficiency up to an additional 7%. A pro-active tool detailing comprehensive unit performance so you can ensure your system operates optimally reducing costly unscheduled maintenance. ©2018 AERCO 800.526.0288