Harris - 703-125-000-D-12 - 703125000D12 - High Purity Regulator 55 while 9SM22254 is the orderable

while 9SM22254 is the orderable Lincoln SKU

Job shops requiring multi-alloy work — Waveform library supports mild steel

Lincoln OEM BLANK COVERPLATE S26841 - 9SS26841

and what breaker size do I need

Lincoln Flux Cone Assembly K119

Harris - 703-125-000-D-12 - 703125000D12 - High Purity Regulator 55 while 9SM22254 is the orderableHarris High Purity Line Regulator Model 703 125 000 D 12 703125000D12 Model HP703 is a chrome plated brass Single Stage pipeline Regulator with a Stainless Steel diaphragm for pipeline and other applications up to 3000 psig inlet pressure. Model HP703 is available with various delivery pressures, inlet fittings, accessories and other options for a customized Regulator to meet specific requirements. Features 2 1 8" 302 Stainless Steel diaphragm