Pennington, NJ – April 22, 2026 – Kooltronic, Inc. has announced the expansion of its Guardian Series Filter Fan lineup with two new models – the KNP315 and KNP355. This addition broadens the application range of the series, offering a more comprehensive selection for a variety of enclosure cooling needs.
The new models enhance the existing Guardian Series, which is known for its rugged and versatile design. With the expanded lineup, the series now offers a wide range of airflow capacities, from 20 to 1,310 CFM, making them an ideal and economical choice for effectively dissipating high heat loads in diverse industrial settings.
All Guardian Series Filter Fans are rated for NEMA 4 electrical enclosures, ensuring they are protected against windblown dust, rain, splashing water, and hose-directed water. This robust design makes them safe for both indoor and outdoor use. For applications requiring additional corrosion protection, a NEMA 4X option with a stainless-steel shell is also available.
The Guardian Series provides a powerful and cost-effective solution for maintaining optimal operating temperatures within electrical enclosures, safeguarding sensitive components, and prolonging equipment life.
About Kooltronic
Kooltronic, Inc., based in Pennington, New Jersey, has been a pioneer in the enclosure cooling industry since 1956. The company designs and manufactures a complete line of cooling solutions, including air conditioners, heat exchangers, fans, and blowers, for a wide range of industrial and commercial applications.
