• Rubber Stopper Solid

Rubber Stopper Solid

RS1-S

Vendor: SmartLabs

Low stock! Only 2 left
R 25.00
R 25.00
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Solid rubber stoppers seal test tubes, flasks and bottles in the lab, and these are made from chemical-resistant natural rubber. They're sold in packs of 10, from a tiny 5mm to 51mm across the bottom.

Each size is listed as bottom diameter x top diameter x length in mm. A stopper is tapered, so the first figure needs to be a little smaller than the opening you're closing and the second a little bigger. Matching a round bottom flask? RS9-S fits a 19/26 socket and RS13-S fits a 24/29.

Available sizes (pack of 10)

  • RS1-S: 5x7x16mm
  • RS2-S: 6x9x16mm
  • RS3-S: 8x10.5x20mm
  • RS4-S: 9x11.5x20mm
  • RS5-S: 10x12.5x20mm
  • RS6-S: 11x14x24mm
  • RS7-S: 13x16x24mm
  • RS8-S: 15x18x24mm
  • RS9-S: 17x20x26mm
  • RS10-S: 18x21x26mm
  • RS11-S: 19x22.5x28mm
  • RS12-S: 21x24.5x28mm
  • RS13-S: 23x26.5x28mm
  • RS14-S: 25x28.5x28mm
  • RS15-S: 27x31x32mm
  • RS16-S: 29x33x32mm
  • RS17-S: 31x36x35mm
  • RS18-S: 33x38.5x38.5mm
  • RS19-S: 35x45.5x36.5mm
  • RS20-S: 38x42.5x40.5mm
  • RS21-S: 40x49.5x40.5mm
  • RS19-SL: 35x28x36.5mm
  • RS22-S: 44x58x48mm
  • RS23-S: 35x45.5x36.5mm
  • RS24-S: 51x60x57mm

If you need to pass a tube or thermometer through the stopper, look at the one-hole rubber stoppers instead.