The California Air Resources Board (CARB) has modified the RYPOS DPF/ULETRU Diesel Particulate Filter System verification with a new parts list and updated engine family lists to include new off-road diesel engines rated at up to 50 horsepower.
The Rypos DPF/ULETRU is a Level 3+ diesel emission control strategy (DECS), capable of reducing emissions of particulate matter (PM) by 85 percent or more without increasing nitrogen dioxide emissions to more than 20 percent of total nitrogen oxides. The RYPOS system consists of a diesel oxidation catalyst (DOC), an active exhaust filter and an automatic filter regeneration system. Specific engine models and families that may qualify are listed in the Engine Family List at CARB's Verification Procedure Website for the original Rypos DPF/ULETRU and Rypos DPF/ULETRU for Thermo King multi-temperature TRUs.
Learn More about CARM TRU Compliance at our Rypos TRU Regulation Resource
Additional information about the Rypos DPF/ULETRU may be found at Rypos’ TRU Page
Rypos is known for innovating the future of clean air through intelligent emissions reduction built on the company’s patented electrically self-regenerating filters. With over 13,000 DPF’s sold, the Rypos DPF ULETRU has been engineered to work seamlessly with both Thermo King® and Carrier® refrigeration units without the need for any operator interaction. Rypos should be the 1st choice for any TRU operator or fleet entering California where they must comply with the CARB TRU ATCM.