​The Challenger custom-designed two-propeller system delivers a superior swim current:

It's larger. The system moves more water, requiring a 61cm x 45.75cm outlet grill – The broader, deeper current gives beginners more room to drift.

It's faster (or not). Power it up to its demanding top speed of 1:11/100m, or at the push of a button, slow the current down to a gentle pace.

It's smoother. Many swimmers even call it "soft." but it all comes down to this – the current just feels better!