Taped umbilical of any length. Your choice of components, fittings, and communication connections. Standard umbilical includes 3/8 in. Gates Diver Air Hose, 1/4 in. Yellow Low Pressure Pneumo Hose, 20AWG Shielded 4-wire Communication Cable and 3/8 in. Yellow Poly-Pro. Standard fittings include O2 Barb for Air Hose, #4 JIC Barb for Pneumo Hose at the surface, and Banana Plugs for Com Cable at the surface. D-ring taped on umbilical for connection to divers harness.