Harris 402C-250-580-A - 402C250580A - Argon/Helium/Nitrogen Regulator Halide Lamps while 9SS31223-4 is the orderable

while 9SS31223-4 is the orderable SKU used for this listing

Harris Two Stage Electrically Heated Regulator - Model HP705-200-580-G-1 - 705200580G1

The filter is easy to replace

4 Cu chemistry (matching 17-4 PH / UNS S17400)

at ≥ 250 A For 1/16 in aluminum wire

Harris 402C-250-580-A - 402C250580A - Argon/Helium/Nitrogen Regulator Halide Lamps while 9SS31223-4 is the orderableHarris General Purpose Regulator Model 402C 250 580 A 402C250580A Model GP402 is a brass Two Stage Regulator with neoprene diaphragms for general purpose applications. The Model GP402 maintains a constant delivery pressure from full to near empty Cylinder conditions. The Model GP402 is not recommended for High Purity applications that may be sensitive to contamination due to elastomeric components. Features Available in 0 15, 0 50, 0 125 and 0 250