WHEATON® Snap On Stopper, 20 mm, Non-Siliconized, Gray, 6000/pk

• Snap-On stopper provides maximum sealing for vials by locking into the blowback ridge
• Provides a tight seal and keeps the stopper from backing out

Specifications

• Stopper Style: Snap-On
• Color: Gray
• Stopper Material: Bromobutyl, Uncoated
• For Mouth OD (mm): 20
• Quantity: 6000
• Durometer: 55