![Constant Pressure Rubber Bulb Constant Pressure Rubber Bulb](/cmsstatic/img/product/1599/WSI_TSI-206-1.jpg?browse)
Constant Pressure Rubber Bulb
Manufacturer: Walter Stern Company
Constant pressure rubber bulb consists of two 200mL rubber bulbs, one with check valves and the other with a net to prevent over expansion and to allow continuous air stream.