Laboratory Grade Rubber Stopper, Black SBR Rubber, Size #1, 19 x 14 x 25mm, 52 per Package, 52PK, United Scientific, Mfr#: 259150-1$50.99+
Cap, Flange Plug, 17mm, for 17mm Tubes and 15mL Centrifuge Tubes, White, 1000PK, Globe Scientific, Mfr#: 6263W$70.99+
38-400 White P/P Continuous Thread Closure, Ps22 .020 023 Printed-Sfyp - Black, Ribbed Skirt, Tricorbraun, Mfr#: 056972$0.10+
28-350 Kerr Gold P/P Tamper Evident Closure, Linerless Ribbed Skirt, Smooth Top, Breakaway Band, Tricorbraun, Mfr#: 006127$0.13+
Cap Insert for Diamond Essentials Cryogenic Vials, White, 500PK, Globe Scientific, Mfr#: 3030-CIW$17.49+