LifeSupplyUSA Replacement Filter to fit Hunter 30920 30905 30050 30055 30065 37065 30075 30080 30177 Will fit Hunter models 30905, 30913, 30920, 30054, 30050, 30071, 30832, 30882, 30883, 37055 30055, 30065, 30070, 30075 30080, 30177, 37065 Measurements 10 1/2 x13 3/4x 3/4 " c By LifeSupplyUSA