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Highly Efficient with A Large Cooling Surface

Screw Thread & Leakproof

Joint & Penny Head Glass Stopper with Graduation

1.1 ml is Graduated at 0.5, 1.0 & 1.1 ml

Perforation & Zip Lock

Free Dnase, Rnase, Human DNA, Pyrogen & PCR Inhibitor

Inner Bulb Section Provides Increased Cooling Surface

Small Size Socket at Top & Big Size at Bottom

Regular Stopper has Clear Incineration & Biodegradable Property

Biosafety, Light Weight, Water Saving, Less Manpower, Time Saving, Low

Non Reactive & Made of High Quality Food Grade

Resistant to High Pressure, Vacuums, Steam Sterilization & UV Sterilization

Low Expansion & Highly Efficient with Large Cooling Surface

Heat Resistant

Screw Thread & Leakproof

Use with Retort Stand & Condenser Clamp

Regular Stopper has Clear Incineration & Biodegradable Property

Accurate in Dimension

Durable

Durable

Accurate in Dimension

Excellent Re-Sealing Capability

Medium Form

One End Spoon & One End Flat

Regular Stopper has Clear Incineration & Biodegradable Property

Small Size Socket at Top & Big Size at Bottom

Drip Tip

Uniform Wall Thickness

Excellent Heat Transfer

Bosshead

Small Size Socket at Top & Big Size at Bottom

Unprinted Sockets to Avoid Getting Printed Charred

Smooth Grinding Surface Finish to Avoid Leakage

Still Heads But with Extra Socket to Accept Dropping Funnel

Sloping with 2xB14 Socket

Inner Bulb Section Provides Increased Cooling Surface

Drip Tip

Excellent Heat Transfer

Uniform Wall Thickness

Drip Tip

Avoids the Problem of Closed System