The Multiplex Delivery System can be mounted with 2 up to 4 Flowmeter at the combi-vet anesthesia ma- chine. Most configuration has 1 Flowmeter with 0.1 – 5 l/pm and additional Flowmeters with 0.1 – 2,5 l/pm scale. Below is a combi-vet unit with 4 Flowmeters.