Harris Two Stage Ultra High Purity Brass Barstock Regulator Model 721C-250-320-C - 721C250320C PIPEFAB Is this the same electrode

Is this the same electrode as the parent Lincoln Fleetweld 37 grade

Harris Two Stage Ultra High Purity Brass Barstock Regulator Model 721-050-320-E - 721050320E

Nozzle insulator wear replacement: Replace a cracked

Lincoln OEM DOOR LATCH S18137 - 9SS18137

Rated 500 amps at 60% duty cycle

Harris Two Stage Ultra High Purity Brass Barstock Regulator Model 721C-250-320-C - 721C250320C PIPEFAB Is this the same electrodeHarris Two Stage Ultra High Purity Brass Barstock Regulator Model 721C 250 320 C 721C250320C 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)