Unfortunately MERV 13 rated filters have been pushed out since the material used in MERV 13 filters is in high demand due COVID.
The NaturalAire MERV 13 filters have not been impacted by this delay.
Please visit for current lead times: https://www.rememberthefilter.com/pages/production-schedule
RememberTheFilter.com truly appreciate your business and apologize for the inconvenience.