Aprilaire 810 - 20" x 25" x 4" Clean Air Expandable Filter for Filter Grille 2025FG, MERV 11

SPECIFICATIONS:

• Compatible Models: 2025FG, Competitive Models (Carrier, General, Honeywell, Lennox, Trion, Ultravation) using 4897 Upgrade Kit
• MERV Rating: 11
• Materials: Synthetic Fiber
• Nominal Measurements: 20H x 25W x 4D (inches)
• Actual Measurements: 19.58H x 26.63W x 4.05D (inches)