Unitized first aid kits contain individual, labeled boxes of first aid supplies and are mostly used in certain outdoor job sites like utilities and construction. The Unitized first aid boxes are designed for rough, rugged use and include a rubber gasket that keeps out dirt, grime and moisture. Outdoor workers love these unitized first aid kits because they have the supplies they need in the event of an emergency and these first aid kits will hold up in their rough environments. Unitized first aid kits for use in autos, work vans and vehicles and trucks and trailers are small enough to fit under seats, in glove compartments and truck beds. If you don't see the unitized first aid kit you need, visit our Make A Kit page to customize a kit for your job!