Unbranded 310 Filters Personal Preparedness sku-18478215124

Unbranded sku-18478215124 (UPC 741051081548) is a 2-pack of 310 replacement filters listed under Personal Preparedness. The filters fit AprilAire 310 whole-house models 1310, 2310, 3310 and 4300. Nominal size is 20 x 20 x 4; the listing also gives actual dimensions of 20.47 x 19.25 x 4. Its title calls the filter MERV 11, while its description gives a MERV 10 rating and says it traps 95% of dust.

The synthetic fiber material is described as lightweight, air-permeable and low-resistance, with a long service life. The foldable filter can be stored when not in use and installed without assembly, cardboard or metal reinforcement. The seller recommends replacement every 6-12 months, depending on use and environment, and offers customer support through a team available 24H.