FeaturesSmooth, rounded integral bushing in hubs protects conductor insulationRoomy interiors more wiring spaceAccurately tapped, tapered threads for tight, rigid joints and excellent ground continuityForm 85™ copper free aluminum UNILETS™ are lightweight, self oxidizing, self-renewing and offer a high corrosion resistanceLightweight aluminum facilitates shipping, handling and installingSizes with flat back design ideal where fitting is mounted flat against surfaceInternal volume and maximum wire capacity clearly marked on castingsThreaded style is raintight when used with casketed covers