Glasfloss Z-Line Series HWR Merv 10 (White Media) Replacement Filters For The Honeywell F-100 And FC40R Air Cleaner Filters. These Filers Are Made Up Of 100% Synthetic Fibers With An Expanded Metal Reinforcement That Is Laminated To The Air Exit Side Of The Filter Which Are Thermally Bonded. Moisture Resistant Separators Are Used To Ensure Pleat Integrity During Use. Each Filter Is Sealed In A Plastic Bag To Protect The Filter Before Use.

Best Used For...

• Filter Replacement For 1" Return Air Grate
• 100% Synthetic Fibers
• Heavy Duty Moisture Resistant
• Lasts 3-6 Months