Designed for Vax Blade 32V / 24V Series Cordless Vacuums. Compatible with Vax Blade 32V / 24V: TBT3V1B2, TBT3V1H1, TBT3V1F1, TBT3V1B1, TBT3V1P2, TBT3V1P1. By creating a superior seal against fine debris, our filter prevents dust buildup in the motor, directly extending the lifespan of your appliance.