$37.56and up
16x25x1, Ultimate Allergen Furnace Filter Air Filter, MERV 11, by 3mAmazon & 1 more$55.99
Filtrete by 3M, 14x24x1, MERV 12, Advanced Allergen Reduction HVAC Furnace Air Filter, Captures Allergens, Bacteria, Viruses, 1500 MPR, 4 FiltersNewegg$35.79
Filtrete by 3M, 12x12x1, MERV 10, Micro Particle Reduction HVAC Furnace Air Filter, Captures Pet Dander and Pollen, 800 MPR, 4 FiltersNewegg$131.89
Filtrete by 3M, 12x30x1, MERV 11, Allergen Plus Odor Reduction HVAC Furnace Air Filter, Captures Pet Dander, Pollen and Traps Odors, 1200 MPR, 4.Newegg