Double tube bunsen lab burner

This model Suits for Bottled Gas

It can rotate 30 degree freely from left or right

It works well both for left-handed and right-handed

Kindling Tube and Working Tube work separately.Both have their own controlling system

It make this gas light save energy and with single-tube and double-tube function

Distinguished controlling system ensures the gas light never leak gas during working ,so it is very safe to use.