Two-Position Snap Caps

Caplugs® Evergreen Two-Position Snap Caps are overfitting caps for use with culture tubes. Our caps are designed to fit specific tube diameters and tube materials.

  • Position 1: Loose for aerobic culturing
  • Position 2: Tight for anaerobic culturing and leakproof sealing
  • Available in Non-Sterile or Gamma Irradiated Sterile


Made in the U.S.