Replacement FilterQueen Defender 4000 Filter by GoodVac. Replaces HEPA Filter for Rac4000 AM4000 Defender 360 80th Anniversary 7500 purifyers Premium replacement Filter Queen 4000 HEPA filter made by GoodVac Measures approximately 8 H x 7 1/2 ID x 11 1/4 OD Absolutely Essential For Allergy Sufferers High Quality Aftermarket Filter made by GoodVac. Made for the Filter Queen Defender 4000, 7500, DP360