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Part Number Name Color Diameter at Large End (mm) Length of Ground Zone (mm) Standard Taper Stopper Size Shelf-Pack Qty Case Qty Case Price, USD Quantity Add to Cart
41901R-8 Key-Head Color-Coded Medium Length Solid PTFE Stopper Gray 8.25 10.0 8 1 6 $41.82
41901R-9 Key-Head Color-Coded Medium Length Solid PTFE Stopper Black 9.4 14.0 9 1 6 $45.45
41901R-13 Key-Head Color-Coded Medium Length Solid PTFE Stopper Orange 13.4 14.0 13 1 6 $53.53
1901R-16 Key-Head Color-Coded Medium Length Solid PTFE Stopper Blue 16.5 15.0 16 1 6 $68.58
41901R-19 Key-Head Color-Coded Medium Length Solid PTFE Stopper Green 19.7 17.0 19 1 6 $81.76
41901R-22 Key-Head Color-Coded Medium Length Solid PTFE Stopper Yellow 22.05 20.5 22 1 6 $78.73
41901R-27 Key-Head Color-Coded Medium Length Solid PTFE Stopper Red 27.15 21.5 27 1 6 $149.27
41901R-32 Key-Head Color-Coded Medium Length Hollow PTFE Stopper Grey 32.15 21.5 32 1 6 $152.36
41901R-38 Key-Head Color-Coded Medium Length Hollow PTFE Stopper Black 38.0 30.0 38 1 6 $196.74

PTFE has excellent chemical resistance and resists freezing in ground glass joints

·         Remove the colored polyethylene handle from the PTFE stopper before cleaning or exposing to temperatures above 80 °C

·         Stoppers of sizes 9 through 22 are solid, and sizes 32 through 38 are hollow

·         Designed from ASTM Specification E675