FRANKLIN, Mass., Oct. 25, 2019 (SEND2PRESS NEWSWIRE) -- RYPOS, Inc., developer, and manufacturer of advanced, exhaust filtration systems is pleased to announce the successful completion of the On-Road In-Use Compliance required by the California Air Resources Board for their entire Ultra Low Emission Transportation Refrigeration Unit active diesel particulate filter (DPF) product line.The post RYPOS' ULETRU Filters for Thermoking and Carrier Refrigeration Units Achieve In-Use Compliance Goals appeared first on Massachusetts Newswire.