Harris HP 721C Specialty Gas Co2 Regulator - 721C-250-320-B - 721C250320B Hard Hat Adapters Always match the code number

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

WARNING T13086-237 - 9ST13086-237

causing brittle welds

5m ) S28175-7 - 9SS28175-7

Harris HP Single Stage Pressure Regulator Model 8700SS SR-1500-680 - 3200401

Harris HP 721C Specialty Gas Co2 Regulator - 721C-250-320-B - 721C250320B Hard Hat Adapters Always match the code numberHarris 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)