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Rubber Stoppers for Kjeldahl Flasks

Light tan rubber stoppers

$78.76 - $370.24

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Catalog Number Mfr. No. Price Quantity  
Catalog Number Mfr. No. Price Quantity  
14-149B The Plasticoid Company
Pack of 18 Each for $78.76
Case of 5 Pack for $393.80
14-149A The Plasticoid Company
Case of 5 Each for $370.24


  • Choice of styles: solid or with one hole of proper size for Pyrex™ Kjeldahl Connecting Bulbs
  • One-hole style can be enlarged or the solid stopper bored to take larger sizes
  • Top diameter: 32mm; bottom diameter: 26mm; height: 34mm; one-hole bore diameter, 8mm

†The approximate per-pack quantity shown is based on the average number of stoppers in 1 lb. (454g).