GENUINE OEM bt Bemis Wick Filter. Fits Models: ESK1040, 300-399, 500-599, 700, 799, 5000-5999, 7000, 7999, 726000, DP3 Series and SGL1040, 3D6-100, 3D6100, 300 SERIES TT, 3023, 3024, 336 500, 336500, 338 000, 338000, 5000, 5161, 5162, 526 600, 526300, 526600, 527 100, 527 300, 5271, 527100, 5273, 527300, 5373, 5971, 5973, 5D6700, 7000, 726 905, 7260, 726000, 726905, 736 200, 736200, 737 600, 7370, 7376, 737600, 759 200, 759200, DP3 200, DP3200, DT6, TD6710, WATERWICK 5000 SERIES TT, 7000 SERIES TT, 1040SGL, 1042, SGL1040, B40-RPS, also fits Bemis Air Cleaner Model D46, D46-720, D46720, 7D6100, 7D6200, Old number B40C, B40-C, 8x8" (BEM1040) 7V1040SS, MA1040, 04467-8 Please Note: This is NOT an aftermarket filter (2 Per Pack)