Thank you for viewing. This is one high-performance filter for a ventilation fan. I purchased it, but I no longer need it as I replaced the ventilation fan, so I am selling it. - Brand: STAR FILTER - Product Name: Star Filter - Application: Ventilation fan filter Size: 297mm x 290mm *Filter only, frame not included. I will ship it as is, in an envelope. Instant purchase is welcome! Thank you.