new system installed May 2017, this is first time I need to change the filter (Solace). I struggled for 45 minutes to no avail and called for service. Service Tech Pat also had hard time getting it out, but finally did and learned the mastic during install had adhered to the filter housing and acting like a glue holding it in place. Hopefully, in 3 months time I'll be able to remove and replace filter more easily.
