Universal F Coaxial 15-80kg
Circle Systems: Coaxial High Resistance & High Volume Uni-Limb breathing circuit; for animals bigger than 15kg
Rebreathing Coaxial Circle System: is the highest resistance & volume circuit with Inspiratory tube 13mm ID INSIDE the expiratory tube 25mm ID. Has a single inspiratory connection manifold with an expiratory side arm. Size 25mm (1″) ID x 1.5m (5′) long corrugated tube & 2L bag. Drying is difficult – can get mould growth. High resistance so only use for small animals bigger than 15kg (30lb).