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This solid glass plug stopcock has a ground glass plug and stopcock. The stopcock must be greased before use. This series of products is available with bores from 2 to 10 mm.
Sizes from 2 to 6 mm bore are supplied with a green metal retaining clip to keep the plug from popping out while the 8 and 10 mm bore sizes are supplied with a #29 and #34 Keck clip, respectively.