3M
7100353151
Filtrete™ MPR 1900 Electrostatic High Performance Air Filter UA137-4, 20 in x 23 in x 1 in (50.8 cm x 58.4 cm x 2.5 cm)
3M
Filtrete™ MPR 1900 Electrostatic High Performance Air Filter UA137-4, 20 in x 23 in x 1 in (50.8 cm x 58.4 cm x 2.5 cm)