Features Assembly is a "Snap" Swivel Barb rotates 360° The unique design of the modular bulkhead base allows the swivel fitting to rotate 360°, independent of the bulkhead base. A Double Swivel Bulkhead Base provides the ability to utilize a swivel fitting on both ends of the bulkhead fitting. Three barb configurations are available, the Straight Swivel, the Swivel Elbow, and the Swivel Tee. Barbs for 1/16", 3/32", 1/8", or .170" I.D. tubing are featured. The fitting is precision molded in black Nylon. Buna-N, Ethylene Propylene, Silicone, and Viton O-rings are available. Components for the Swivel Bulkhead Fitting can be purchased in a Starter Kit or if you prefer, we can provide them already assembled to your specifications. Specifications Mounting Hole Diameter: 1/4" or 3/8" Operating Temperature: 40° to 120°F (5° to 48°C) Supply Pressure: 125 psi (max) Swivel Barb Configurations: Straight, Elbow, and Tee Thread Sizes: 1/4-28 UNF and 3/8-24 UNF (nut is included) Materials Housing Material: Nylon (black) O-ring Material: Buna-N, Ethylene Propylene, Silicone, and Viton Port Connections Barbs for 1/16", 3/32", 1/8", or .170" I.D. flexible tubing