Filterbuy 16x21x1 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 15.50 x 20.50 x 0.75) RKURCK which is moisture-proof and rust-proof

which is moisture-proof and rust-proof

Wet or Dry

Quality Material: weld cap crafted from durable Pressed Steel

Notice: Masking tape need to avoid direct sun-light and make sure the surface no dust

Filterbuy 16x21x1 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 15.50 x 20.50 x 0.75) RKURCK which is moisture-proof and rust-proofBrand: Filterbuy Color: Silver Features: UNIVERSAL COMPATIBILITY: 16x21x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 15. 50" x 20. 50" x 0. 75") MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 & FPR 5) that captures 90% of dust without restricting air flow