The cap is stainless steel for Ohio 100F, Ohio 100S, Ohio 100H and for Verni-Trol. The item is brand new made in Milwaukee, Wisconsin, USA. It comes with brand new label . To order O-Ring is a separate item number ( SVOM-100-094 for $ 4.75). Products intended for Vaporizers Technical Staff, Licensed physicians and Veterinarians .

This is the most commonly replaced item for a wonderful vapo in a veterinary practice.