Lennox - H6921 - Replacement Log set used on Marco Fireplace Models Designer L-EILP, Designer L-EING, Designer L-NGSP, Designer L-SPLP, Designer P-EING, Designer P-LPEI, Designer P-LPSP, Designer P-NGSP, Designer R-EILP, Designer R-EING, Designer R-NGSP, Designer R-SPLP, Designer ST-EING, Designer ST-LPEI, Designer ST-LPSP and Designer ST-NGSP - Part / Catalog #'s: 794208A, 794185A, 794186A, 794187A, 794179A, 794207A, 794181A, 794180A, 794209A, 794182A, 794183A, 794184A, 794176A, 794206A, 794178A and 794177A