Specification Binding : Unknown Binding Brand : MARS WELLNESS Label : Mars Wellness Manufacturer : Mars Wellness Model : MW-156-10046 PackageDimensions_Weight : 0.01984160358 PackageDimensions : L:4.649999995257 X W:3.7799999961444 X H:1.49999999847 PartNumber : MW-156-10046 ProductGroup : Health and Beauty ProductTypeName : HEALTH_PERSONAL_CARE Publisher : Mars Wellness Size : 52 Filters SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/313bAvpDncL._SL75_.jpg SmallImage_Width : 75 Studio : Mars Wellness Title : CPAP Filters Compatible with ResMed Airsense 11 Disposable Felt Pollen air Filter - 52 Pack 1 Year Supply - Made in The USA CPAP Filter Supplies Series Machines - by Mars Wellness Weight : 0 WeightUnit : pounds