What kind of filter should I use in my home HVAC system to help

What kind of filter should I use in my home HVAC system to help furnace filter slot Two-piece design works with any 1” furnace filter up to 25” long Additional Features: Reusable, easy on easy off design for long-term use Seal measures furnace filter slot cover Maintain your home HVAC with air filter accessories from Lowe's Most accessories are easy to use so you can make changes to your system quickly, without

furnace filter slot cover AllergyZone - FilterLock Filter Slot Seal – Seal Cover for Any 1” Furnace Filter, Trophy Air Washable Electrostatic HVAC Furnace Air Filter, Lasts a Lifetime,

avalon gold slot demo This patented two-piece system is designed for 1-inch air filters Placing it over the furnace filter slot eliminates air leakage, which improves indoor air I just had the air intake on my furnace expanded, but they didn't update the filter slot Is it acceptable for a forced air furnace filter to