Harris Two Stage Ultra High Purity Brass Barstock Regulator Model 721C-500-350-A - 721C500350A 630 The pre-filter mats should be

The pre-filter mats should be replaced about once a month if welding approximately 40 hours a week

Lincoln OEM OPERATION SWITCH UF FC0809040020 - 9SFC0809040020

contact WeldingMart to identify the correct snake skin cover part number for your configuration

SKU ED034993 is the same AWS A5

Lincoln OEM NAMEPLATE L16976 - 9SL16976

Harris Two Stage Ultra High Purity Brass Barstock Regulator Model 721C-500-350-A - 721C500350A 630 The pre-filter mats should beHarris Two Stage Ultra High Purity Brass Barstock Regulator Model 721C 500 350 A 721C500350A 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)