Magnetic Screw Seals ND18, Silicone blue/PTFE white, 1,3mm, pk/100

20mm Red BiMetal Seal, 0.118" PTFE/Silicone

N 20Magnetic crimp cap, silver, 8mm hole, pk/100

20ml Thread Vial ND18, 75.5 x 22.5mm, clear, rounded bottom, pk/100