Austin Air, Replacement Large Particle Pre-Filter Color:White ideal for concrete floors or

ideal for concrete floors or walls as well as stucco

Like most good underlayment

It can be used indoors instead of a typical high solvent sealer and is durable enough for use outdoors

Unlike oil-based polyurethanes which off-gas for weeks

Austin Air, Replacement Large Particle Pre-Filter Color:White ideal for concrete floors orReplacement Large Particle Pre Filter This is a replacement pre filter for the full sized Austin Air Air Purifier Units, including: HealthMate HealthMate Plus Immunity Machine Allergy Machine Bedroom Machine Replace annually. This comes in two colors; black and white. Use the Black filter for black and midnight blue colored machines and the White filter for white and sandstone colored machines. [tabs] Why We Like It > > Features & benefits >