GMCO Heavy Duty Stainless Steel Ferrules are constructed to the same standards as GMCO Heavy Duty Carbon Steel Industrial Ferrules but are designed to provide the ultimate in external environmental corrosion and chemical resistance. These fittings are use in conjunction with GMCO Heavy Duty Industrial Stainless Stems and provide permanent attached hose couplings for the harshest environments. Ferrules are kept in stock in stainless steel 316 in sizes from 2” through 6”. Pricing on request for larger hoses and other grades of stainless steel. couplings can be crimped or swaged for ease of installation.