The T-shaped nozzle allows you to connect an additional terrarium to your Reptile Rain Forest misting system. The “T” nozzle is an intermediate nozzle in the circuit; otherwise, a cap must be added. The hose connects easily to the nozzle thanks to its clip system — no tightening required. The nozzle comes with a suction cup for attachment. Unlike bulkhead nozzles, this nozzle is placed on one of the glass walls of the terrarium, avoiding the need to drill holes in the top of the vivarium.