I bought these filters in September 2016 and I think they work great when purifying the air and ensuring the correct operation of the stove. They are well built and have a very strong cardboard frame with a slatted front and back that will hold up well to normal handling. However, the actual size is slightly smaller than the advertised 15-3/8" x 23-3/8" x 3/4" but they fit in my oven with no problems.
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