Harris® H-16-E all fuel gases E-equal positive pressure torch mixer with 5/16"-27 thread connection is compatible with Models 50-9, 50-10, 19-6, 19-6A torch handles, Models D-50-C (all sizes), TH-50-2 and 2XL, D-50-C and CXL tip tubes, Models 5090 (0-10), 1390 (0-10), 8490 (2,4,6and8), 1390-N (2-10), 8490-N (4-8) welding/brazing tips and Models J-16 (1and2), 1390 (HA), 8490-6-65, 1390 (BandH) heating tips. It has a welding capacity up to 1/2" and heating capacity up to 100,000 BTU. This medium duty mixer is used for metal art, maintenance, and production brazing applications.