Lightweight (150g only) and 25% smaller than its predecessor (the R190), the R290 is a great choice for a compact alternate air source. Larger silicone exhaust valve increases breathing comfort, and it comes with a preset moderate Venturi effect which prevents free flow.
I have two of these available, both in excellent condition. Will sell separately for $50 each, or $90 for both.
I have two of these available, both in excellent condition. Will sell separately for $50 each, or $90 for both.
