FRANKLIN, Mass., Oct. 9, 2019 (SEND2PRESS NEWSWIRE) — RYPOS, Inc., developer, and manufacturer of advanced, exhaust filtration systems is pleased to announce the successful completion of the application engineering effort to fit their standard Ultra Low Emission Transport Refrigeration Unit Filter system to the CarrierX4 and Thermoking C650 series refrigeration units. These models use a less than 25 horsepower engine that has a seven-year emission compliance life in California. The application of the Rypos filter will extend their compliance to the end of life.

Rypos ULETRU filters successfully applied
The DPF systems, which are verified to the Level 3+ reduction standard by the California Air Resources Board, and have been operated extensively within the refrigerated trailer fleets in California have recently been retested after years of field use by an independent lab and found to be fully emission compliant.

The Rypos Active DPF is a filter that traps and burns soot reducing particulate matter emissions by more than 85 percent. Unlike other particulate filter technologies, the Rypos system is self-monitoring and completely autonomous, ensuring that the filter is continuously clean and able to accept the full exhaust load of the engine in any operating conditions and at any time.

“This important milestone validates the systems original design premise, that it would be an end of a life compliance solution for the Tier IV interim and less than 25 horsepower engines powering the majority of the installed base,” said Peter Bransfield, RYPOS’ CEO.

About Rypos:

RYPOS ( is a privately held company with operations in Franklin, Massachusetts. They have designed and developed a number of leading-edge diesel exhaust filtration products for small and large engines that utilize their patented electrical regeneration strategy and technology.

Rypos Contact: Trish Jacobs, 508-429-4552, or email Online:

RYPOS, Inc., 40 Kenwood Circle, Franklin, MA 02038.

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News Source: RYPOS