The Scubajet Pro Diffuser Star is a genuine internal component of the Scubajet Pro diffuser assembly. Sitting inside the diffuser, it plays a key role in directing and stabilising the water flow through the nozzle — ensuring your underwater scooter delivers smooth, consistent thrust on every dive.If your diffuser assembly is showing wear or reduced performance, replacing the Diffuser Star is a simple and cost-effective way to restore it to full working order without replacing the entire unit. Internal component of the Scubajet Pro diffuser assembly Directs and stabilises water flow for consistent thrust output Genuine Scubajet Pro replacement part Precision-engineered for a perfect fit within the diffuser Easy to replace as part of routine maintenance