Link Gulf 7735-24 
Ramsbottom Carbon Residue Coking Bulb ASTM D524 24/Case
Corning Glass 7735-24 / Cole-Parmer EW-59876-62  / Fisher 13-397-5 / Koehler 332-007-001 / Spectrum 988-27652 / Thomas 1224B39 / VWR 52922-164
Carbon Residue Coking Bulb
 
| These PYREX® bulbs are for the absorption of CO2 in carbon determination. Weight, when filled, is approximately 135 grams.  A turn of the interchangeable stopper closes both inlet and outlet tubes which have 6mm O.D.  |