LSE Lighting Combo Pacakge UV Bulb LB4000 and FLT4825 AC4300 series True HEPA Filter B Brand: LSE Lighting (Brand New Individually Sealed) - COMBO Package Includes (UV BULB LB4000 & FLT4825 Filter) Type: True HEPA Replacement Filter B (True HEPA Filter - Captures 99.99% of particles) - Size: 15.5 x 4.8 x 1.3 inches This HEPA replacement Combo Package by LSE Lighting brand is designed specifically to fit the GermGuardian Air purifier models AC4300 AC4800 AC4900. Note: This filter is absolutely essential for allergy sufferers designed to filter smoke, dust, pet dander, pollen, mold pores, fabric and other allergen air borne elements. This is not a GermGuardian OEM product. Any use of the GermGuardian brand name or model designation for this product is made solely for purposes of demonstrating compatibility. This Filter is by LSE Lighting brand. We do not sell GermGuardian brand filters. All GermGuardian brand names, trademarks and logos are property of GermGuardian respectfully.