4Pack Nested Glass HVAC Air Filter 16×25×1 Inch, Continuous Filament SpunGlass Media, 30Day Service Life For FurnaceAirConditioner

4pack air filters, dimension 16" × 25" × 1", standard grade for furnaces and central airconditioning systems Continuous filament spunglass filter media; onepiece chipboard frame prevents corner separation Nested construction for compact, spaceefficient storage; each filter is designed for up to 30day service UL Class 2 rated; safeguards HVAC equipment without adding extra strain to heating and cooling units Recommended monthly replacement during heavyuse seasons to maintain equipment protection and energy efficiency

Flanders Precisionaire nested glass air filters are standardgrade replacement filters for furnaces and central air conditioners. Built with continuous filament spunglass media and a solid onepiece chipboard frame. Nested design enables easy storage. UL Class 2 certified. Each filter lasts approximately 30 days. Monthly replacement during highusage periods supports equipment protection and energysaving performance. This case includes four 16"×25"×1" filters.