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Ships within 48 hours · Estimated delivery Sep 15 - Sep 20
Head Width: 18 in
Product Type: Reusable Caulk Plug
basket and basket lid
Chrome finish trip lever
UPC: 051111020166
Fltr Plt 20x21-5/8x1 Na (Pack of 12) algolia-ignore Head Width: 18 inThe 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
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