This product allows an oxygen supply to be added before the scrubber (exhale) on the APD Inspiration and Evolution rebreathers. Fed from a constant mass flow or KISS device, this adaptor can transform your rebreather into either a hybrid or KISS system. NOTE: In order to modify your system with this product, a number of other changes will be required.
If you do not know exactly what you require and how to fit and operate it, then do not buy it!!