Description
This beehive shelf is crafted from glazed porcelain and designed for use in pneumatic troughs during gas collection experiments. With a 75 mm diameter, it supports gas delivery tubes and allows bubbles to pass through its central hole into an inverted gas jar.
Features
Material: Glazed porcelain – chemically inert and heat resistant - Diameter: 75 mm - Design: - Circular with central hole for gas delivery - Raised rim for stability in troughs - Application: Used in pneumatic troughs for collecting gases over water - Compatibility: Fits standard gas jars and troughs

