18x18x1 MERV 11 AC & Furnace Filters (12 Pack)

SP-18x18x1-P11M12
Made in USA
List Price: $167.99 Our Price: $83.99 Save: $84.00!
Made to order (See notes below)
Replace every 3 months
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  • Product Overview
This item is made to order, non-returnable, and ships within 1 business day. Please check the actual dimensions listed below prior to ordering.
MERV 11 18x18x1 Furnace Filter Overview
  • MERV 11 rated per ASHRAE test standard 52.2
  • Actual dimensions of the filter are 17.75" x 17.75" x 0.75"
  • Long-lasting value package
Compatible Geothermal Heat Pumps / Heating & Cooling Systems
OEM Brand OEM Series OEM Model OEM Filter Part Number OEM MERV Value
GeoComfort Compass Series Horizontal GS018 M1118181-6 11
Compass Series Horizontal GS024 M1118181-6 11
Compass Series Horizontal GT024 M1118181-6 11
Compass Series Horizontal H018 M1118181-6 11
Compass Series Horizontal H024 M1118181-6 11
Compass Series Horizontal H026 M1118181-6 11