For small animals such as rats, guinea pigs, birds and mice

 • Simple, yet effective design

 • Ideal for brain circuits, non-breathing systems or "Y" pieces

These masks were designed especially for smaller animals. The masks have a simple cylindrical shape with a diaphragm. A small slit is cut in the diaphragm to accommodate the animal's snout or beak. The opposite end tapers down to a standard press fitting port measuring 15.3 mm o.d. x 11.9 mm i.d.