Dirt Devil Primary Filter 304087001 - Hoover T-Max

Part 304087001 is the primary filter shared across Dirt Devil's UD70200 and a large family of Hoover T-Max uprights, including the UH70600, UH70603, UH72600 and UH71250. The same part number is cataloged against both nameplates, with more than forty Hoover model numbers on the compatibility list alongside the Dirt Devil unit.

As the primary stage, this filter takes the bulk of the dust load before air reaches the motor. On a T-Max upright that shows up as suction that fades gradually rather than all at once, since the motor keeps running while it works harder against a filter that can no longer pass air freely. Left too long, that added strain on the motor is the more expensive consequence, not just weaker pickup, since a motor that has been working against a restricted filter for months wears faster than one that has not.

A primary filter is worth checking on a schedule rather than waiting for the machine to feel slow, because the loss is gradual enough that most people stop noticing it. Knocking the loose dust out between changes will stretch the interval where the design allows it, but treat that as a delay rather than a substitute: the fine material packed down into the media is what actually restricts airflow, and it does not shake back out.

• Part: 304087001
• Fits: Dirt Devil UD70200; Hoover UH70600, UH70603, UH72600, UH71250
• Also listed against: Hoover UH70601, UH70602, UH70604, UH70605, UH70700, UH70800, UH71100, UH71200, UH71230 and UH71251
• Function: primary filtration ahead of the motor

Match the exact model printed on your upright's base plate to the list above before ordering, since Hoover produced many close variants within the T-Max line.