Dri-Eaz * DefendAir * HEPA 500 Carbon Pre-filter – F397 Part #: JAN-HVAC187 Designed to Fit: Dri-Eaz * DefendAir * HEPA 500 Carbon Pre-filter Material: Pelletized Activated Carbon Case: 4 – 1 packs Dimensions: 1″ x 16″ x 16″ OEM: F397 You may also like… Read more Dri-Eaz * DefendAir * HEPA 500 Stage 2 Pre-filter – F271 , 13-00199 Read more Karcher * Prochem * Triad * AFD HEPA Filter – 98409300 Read more Karcher * Prochem * Triad * AFD Stage 1 Pre-filter – 98409540 Read more Dri-Eaz * DefendAir * HEPA 500 Stage 1 Pre-filter – F270 , 13-00202 Read more Karcher * Prochem * Triad * AFD Stage 2 pre-filter – 98409550 Read more Dri-Eaz * DefendAir * HEPA 500 HEPA Filter – F321
