PENNY-HEAD HOLLOW GLASS STOPPER

Availability: In stock

Sku Product Name Price Qty
ASS401018 Pennyhead Hollow Glass Stopper For 10/18 Outer Joint

Regular Price: USD9.78

Special Price USD5.87

ASS401018L Pennyhead Hollow Glass Stopper For 10/18 Outer Joint

Regular Price: USD58.68

Special Price USD39.59

ASS401420 Pennyhead Hollow Glass Stopper For 14/20 Outer Joint

Regular Price: USD10.41

Special Price USD6.25

ASS401420L Pennyhead Hollow Glass Stopper For 14/20 Outerjoint 6Pcs

Regular Price: USD62.46

Special Price USD23.99

ASS401922 Pennyhead Hollow Glass Stopper For 19/22 Outer Joint

Regular Price: USD11.13

Special Price USD6.67

ASS401922L Pennyhead Hollow Glass Stopper For 19/22 Outerjoint 6Pcs

Regular Price: USD66.78

Special Price USD24.99

ASS402440 Pennyhead Hollow Glass Stopper For 24/40 Outer Joint

Regular Price: USD11.60

Special Price USD6.96

ASS402440S Pennyhead Hollow Glass Stopper For 24/40 Outer Joint 5Pcs

Regular Price: USD58.00

Special Price USD29.99

ASS402440L Pennyhead Hollow Glass Stopper For 24/40 Outer Joint 10Pcs

Regular Price: USD116.00

Special Price USD45.01

ASS402942 Pennyhead Hollow Glass Stopper For 29/42 Outer Joint

Regular Price: USD13.85

Special Price USD8.30

ASS402942L Laboy Glass Penny-Head Hollow Glass Stopper For 29/42 Joint 6Pcs

Regular Price: USD83.10

Special Price USD45.55

ASS403445 Laboy Glass Penny-Head Hollow Glass Stopper For 34/45 Outer Glass Joint

Regular Price: USD20.76

Special Price USD10.38

ASS403445L Laboy Glass Penny-Head Hollow Glass Stopper For 34/45 Joint 6Pcs

Regular Price: USD124.56

Special Price USD86.99

ASS404550 Laboy Glass Penny-Head Hollow Glass Stopper For 45/50 Outer Glass Joint

Regular Price: USD30.63

Special Price USD15.31

ASS404550L Laboy Glass Penny-Head Hollow Glass Stopper For 45/50 Joint 6Pcs

Regular Price: USD183.77

Special Price USD99.99

Product Code: ASS40

Quick Overview

Material: the penny head glass stopper is made of high-quality borosilicate glass and annealed at 800 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.
Design:1.heavy wall design????This glass stopper is heavy wall designed,made by hand-blowing to ensure uniform wall thickness;
2.Penny head design????for easy gripping??
3.Hollow design and closed bottom ???? Laboy glass stoppers are lightweight yet very strong to reduce chipping and breakage, thus minimizing replacement costs.
Use: This Hollow glass stoppers precision ground glass stoppers are used to close glassware items including Boiling flasks,volumetric flasks,Separatory funnels, and cylinders to Keep air and water out of a reaction for uncontaminated reaction testing. The frosted, precision-ground glass surfaces make a good seal when properly greased and are extremely versatile.
Interchangable:The glass stopper has a 1:10 taper, it can fit any glassware with female joint which has the same taper and same outside diameter as long as the apparatus to which they are attached does not interfere. For example, a 24/40 joint stopper will fit into a 24/40 or/ 24/29 flask.But for the 24/29 flask,the ground glass joint will protrude (40 - 29) 11 mm into the flask.
FAQ:
Question:Do I need to greese the joint stopper?
Answer:If you plan to heat your materials, you need to make sure that air and water are excluded from the system, and/or you want to make sure the joint does not freeze, then you must do so.

Details

Penny head hollow glass stopper,with closed bottom and taper ground male joint.
Made of high quality heavy wall borosilicate glass tubing by hand-blowing and precision grounding.
Used to close glassware items like flasks,separatory funnels,cylinders
With interchangable male joint
100% 45 DAY MONEY BACK GUARANTEE If you are not satisfied for any reason, simply return for a full refund, no questions asked. You have nothing to lose.

FAQ Question


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Delivery & Returns

We are proud to offer a 100% Satisfaction Guarantee 30-Day Risk Free Return Policy

We are confident you will be happy with your purchase. If for any reason the product does not meet your expectations, you may return it in its original condition with all original packing materials within 30 calendar days from the shipment date for an exchange or full refund of your purchase price, excluding shipping costs.

Please inspect your order immediately upon arrival. Do not dispose of the box or any packaging materials until you have inspected your order and are satisfied with the product you have received.


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