This unit features several improvements over the standard brownlee
The open front spring clips make it much easier to remove the test tubes while the tubes remain submerged
The test tubes have been graduated for a clear measurement of the volume of gas generated
The black acrylic background aids in viewing the water level while supporting the test tubes
Measures 140mm length by 38mm width by 203mm height

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 6.5 inch
Height : 4.7 inch
Length : 10.2 inch

Item Weight: 13.6 ounce (View shipping rates and policies)
Shipping Weight: 13.6 ounce (View shipping rates and policies)

ASIN : B005QEF3Y8