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OTR Filters Sprint Car Air Box - 6.6 in Tall - Black EBCDP41853R The accuracy and simplicity ofProduct Description: Sprint Car Air Box 22 x 16. 5 in Rectangle 6. 6 in Tall Reusable Dry Filter Plastic Black US based OTR Filters was founded on developing air filtration solutions that help engines breathe easier, run faster, and perform at their best. With a wide range of filters for everything from street performance to hardcore racing, OTR Filters combines excellent performance with maximum engine protection.