4551 Pleated Media Air Filter (MERV 11)

Nominal Size:
20" x 25" x 5"
Actual Size:
19-5/8" x 24-3/16" x 4-15/16"
Efficiency Rating: MERV 11
Fits:
• GeneralAire Mega-Mac MAC2000, MAC-L
• Lennox MAC-10, MF1-20
• Source1 S1-MAC10202505
• Totaline P101-MF20
• Trion Air Bear 435790-001, 435790-027, Air Bear 25x20 453000-001, Air Bear Grill Mount 2000 446672-004; Air Bear Supreme 2000 455602-001, Air Bear Right-Angle 447380-001, 447380-002, 447380-004, Son of a Bear 435790-048
• Ultravation 90-007, 90-008, 90-010
• York S1-MAC10202505
Typical Lifespan: 1 year