Tunable bandpass filter designed using the slot-line resonator

Is it a problem that my furnace filter is loose in its slot? filter slot All 16x25x1 filters are designed to fit standard 16x25x1 filter slots filter to properly fit in the slot or housing For example, a stock filter slot The size of your home, size of individual rooms and size of your HVAC filter slot can all come into play when it comes time to buy new air filters

slot 3d png slot in the firewall A long, thin rubber seal plugged the slot when the filter was installed The filter could be vacuumed and washed prior to installation