Accessories & Parts Description Product number Description:Versoarc EWH 1000 Welding Head (SAW) Product number: 0904520880 Description:Versoarc EWH 1000 Welding Head (SAW twin high speed) Product number: 0904520884 Description:Versoarc EWH 600 Welding Head (GMAW) Product number: 0904520885