12x36x4 MERV 11 Pleated Air Filter

I had great experience utilizing this type of filter with an HVAC unit I had at another home I owned. At my current location my return air grill only accepted a 12 X 36 X 1 filter which did not satisfy my needs. I researched what would be required to modify my return air to accept this type of filter and found it was definitely doable if I could find the filter to fit. I was lucky to find Filterbuy that makes just about any type or size filter you need. They custom made it for a reasonable price. You cannot but this filter at your big box stores such as Lowe's or Home Depot. I was so pleased to find this company that made them and I would recommend everyone to modify their return airs that only accept one inch filter to be able to accept this design filter.

Easy to order, great service