Model PTR-1 Pressure Temperature Regulator W/Temp Probe & Unloader; Body Size 1",; Sales Kit A; Bronze Body & Loading Chamber;Brass Temperature Probe - Head & Thermal Element,;Cleaned For Oxygen Service Per Cashco Spec #S-1134; Monel Trim, V-Tfe Seat, Fk Diaphragm,;Fk Static Seal, SST/Tfe U-Cup Dynamic Seal;