CG Connectors are fully manufactured in our factory in Fair Lawn, NJ. Precision machined from solid bar stock, there is not a stronger or more versatile seal tighting made. Strong NPT threads ensured you are environmentally protected and protect against cord slide. Grommets are also manufactured by us in Fair Lawn, NJ, color-coded by cable range for identification. Grommet material is Santoprene, Flame retardant UV-resistant and stabilized against copper and other metal-catalyzed degradation. Santoprene is UL 94 V-0 rated and UL 94 5VA rated. Detergent-resistant. Santoprene has excellent form and property retention in the presence of typical wash-down detergents. Santoprene is FDA APPROVED and LATEX-FREE.