BNX TruFilter 18x20x1 MERV 10 Air Filter (4-Pack) is a 4-pack of 18x20x1 electrostatic pleated HVAC filters rated MERV 10 with electrostatically charged pleated media that captures odor, mold, bacteria, smoke, and household dust. Rating: MERV 10 pleated. The pleated geometry increases surface area inside the same 18x20x1 frame, which lets the filter hold more particulate before pressure drop forces a change-out — typical change-out interval is 60–90 days for a single-pet household and shorter under heavy allergy season or smoke conditions.
Drops directly into any 18x20x1-rated AC, furnace, or HVAC return — bedroom intake, hall intake, or in-line plenum filter slot. The 4-pack covers about six months on a 60-day change cycle (single intake). Stamp the install date on the cardboard frame so you have a visual reminder when you walk past the return.
BNX TruFilter is a US-based HVAC filter brand making pleated electrostatic AC, furnace, and HVAC filters in MERV 8, 10, 11, 12 (with activated carbon), and 13 ratings across the common residential sizes. Made in the USA. The brand line covers single-pack and multi-pack configurations so you can stock a year of filters at a time without paying single-pack pricing.
