I bought the 16x25x4 from another retailer only to find they just wouldn't work, even with foam tape, for my Carrier furnace. I put in my furnace carrier, and your 16x25x5 filter was perfect...just added some strips of 1/4x1/2 foam tape for a sug fit top and bottom. Thank you!!
The filter fits perfectly in my furnace it looks like it's made from high quality material exactly what I expected now now if I could keep the dust out of my house I'll be pleased with it