A glass tube 84 cm long and 2.5 cm dia mounted on a stand with a clamp, with a 500 ml glass bulb supported on an iron ring, connecting rubber tubing and a spring clip.

We are manufacturers and suppliers of the Glass Resonance Apparatus, serving Algeria, Argentina, Australia, Bahrain, Bangladesh, Belgium, Bhutan, Brazil, Cambodia, Cuba, Cyprus, Denmark, Ecuador, Egypt, Ethiopia, Finland, France, Georgia, Germany, Ghana, Hungary, Iceland, Italy, Japan, Jordan, Kenya, Kuwait, Malaysia, the Philippines, Tanzania and Uganda.