Called the Delta Fusion. This ZC fireplace meets the 2020 EPA goals at 1.3 g/hr particle emissions. No info on RSF site yet, but it should be there soon.
http://www.hearthandhome.com/news/2016-07-18/delta_fusion_receives_epa_certification.html
http://www.hearthandhome.com/news/2016-07-18/delta_fusion_receives_epa_certification.html