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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
Recommended Surface: Deck/Siding/Fence
Power Source: Air
For Duct Openings up to 20 x 20
Outlet Diameter: 2 in
solvent-resistant PET
Filter Plt 19x21x1 Na (Pack of 12) VEL-D Recommended Surface: Deck/Siding/FenceThe Naturalaire standard MERV 8. The Naturalaire standard has an ASHRAE 52. 2 rating of MERV 8. This filter is convenient to use and easy to replace. Ordinary furnace filters are designed to protect heating and cooling equipment from the insulating properties of relatively large airborne particles. The Naturalaire standard goes far beyond that, removing even those microscopic particles that can stain walls and furnishings or worse aggravate seasonal
