I have an apartment sized air conditioner and I can't always find that size. They're more expensive than what I can get locally, but they're always available, work, and fit perfectly.
π·οΈ Nordic Pure 20X25X5 Pleated Replacement Filter
10 Review
π Aprilaire 213 Whole House Air Filter: Advanced Filtration for Purifiers
10 Review
π¬οΈ Nordic Pure 16x20x1 Pleated Air Filter 16x20x1M12 6 Pack - High Performance Filtration Solution
10 Review
Vacuum cleaner Samsung VC20M25, red
171 Review
NANPU Air Drying System With Double Filters And Pressure Regulator Combo For Clean And Controlled Air Supply
18 Review
Filter under the sink Aquaphor Favorit ECO silver
20 Review
NANPU 1/2" NPT Air Drying System - 5 Micron Particulate Filter, 0.01 Micron Coalescing Filter, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl W/Metal Gauge
23 Review
NANPU DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review