Product review (5 stars): Just what the doctor ordered.
Living in a 50 year old house makes for challenges sometimes to find the equipment or materials needed to repair or service household equipment. To this point, the kitchen vent fan requires this exact filter and it is really hard to find in the home center stores anymore. Newer models have been developed and there is less need for these old style filters. The alternative is to remodel the kitchen and install one of the new models...not today thanks. Not everybody can use this filter, but if it fits your application, you won't find any thing better at any price.