If like me, your behemoth of a refrigerator, the LG LFX31925ST/Sears Kenmore Elite Model 72053, has had its air filter warning light on for some time. Initially, I couldn’t find a replacement filter at either Sears or Home Depot, but now they’re readily available. The LG air filter part number is ADQ73334008, model number LT120F. I found it for $24 at Home Depot. Amazon also sells this air filter but at about the same price.