Harris HP 721C Specialty Gas Co2 Regulator - 721C-250-320-B - 721C250320B Hard Hat Adapters 5m ) S28175-7 - 9SS28175-7

5m ) S28175-7 - 9SS28175-7

5FT) SUPP S31226-313 - 9SS31226-313

and its fully enclosed

Always match the code number because the same Lincoln model name can span different production configurations

Harris HP 721C Specialty Gas Co2 Regulator - 721C-250-320-B - 721C250320B Hard Hat Adapters 5m ) S28175-7 - 9SS28175-7Harris Two Stage Ultra High Purity Brass Barstock Regulator Model 721C 250 320 B 721C250320B Features 1 11 16" 316L Stainless Steel diaphragm eliminates contamination from diffusion or outgassing One piece encapsulated seat design with 10 micron sintered internal filter to protect the PTFE Teflon seat from particulate contamination External relief valve is standard Brass Barstock body, bonnet and fittings 2 dual scale Brass Barstock gauges (psi bar)