Lenz-Laborglas

Lenz Laborglas GmbH & Co. KG is a world-renowned German manufacturer of high-precision laboratory glassware, headquartered in Wertheim. Founded in 1929, the company has spent nearly a century perfecting the art of glassblowing, driven by the mission to provide "Precision in Glass." Lenz is internationally recognized as the market leader for standardized ground joints, stopcocks, and complex glass components essential for chemical and pharmaceutical research. By exclusively utilizing high-performance DURAN® borosilicate glass 3.3 from SCHOTT, the brand ensures that its products offer maximum thermal shock resistance and chemical durability. Today, Lenz remains a family-owned enterprise that combines traditional craftsmanship with ultra-modern CNC grinding and finishing technologies, delivering "Made in Germany" quality that forms the backbone of sophisticated distillation and extraction systems worldwide.

 

The Lenz range at LabFriend features professional distillation and separation solutions, headlined by their world-class conical ground joints, adapters, and round-bottom flasks. These components are essential for building modular, leak-proof glass apparatus for organic synthesis. For specialized fluid control, the brand provides advanced general laboratory aids, featuring high-precision PTFE and glass stopcocks designed for vacuum and pressure applications. Their portfolio also encompasses essential analytical measurement support, including specialized extraction apparatus (Soxhlet) and filtration units engineered for high-purity results. To support advanced research setups, Lenz offers silver-jacketed high-vacuum columns and specialized reactor lids tailored to specific experimental requirements. By choosing Lenz through LabFriend, you benefit from competitive pricing and fast shipping on premium borosilicate technology designed for absolute precision and long-term durability.

 

Why Choose Lenz for Your Laboratory?

  • World-Leading Ground Joint Precision: Lenz is the global benchmark for conical and spherical ground joints, ensuring a perfect, vacuum-tight fit across all modular glass components.
  • Premium DURAN® Material: By using only SCHOTT DURAN® borosilicate glass 3.3, Lenz products provide the highest possible resistance to water, neutral and acid solutions, and high temperatures.
  • Advanced Manufacturing Technology: The integration of CNC-controlled grinding machines ensures that every joint and stopcock adheres to strict DIN and ISO tolerances for unmatched reproducibility.
  • Extreme Chemical & Thermal Resistance: Engineered for the most demanding environments, Lenz glassware can withstand rapid temperature changes and contact with aggressive reagents without leaching or cracking.
  • Comprehensive Modular System: With thousands of standardized components, Lenz allows scientists to build complex, customized glass assemblies that are easily interchangeable and expandable.

Showing 129 - 160 of 1401 results

Round-bottom Flasks with Conical Joint, Cap. ml 50 Socket NS 19/26
In stock
Lenz-Laborglas Round Bottom Flasks with Conical Joint, Capacity 50 mL Socket NS 19/26

R 328.90

Inc. VAT

Part6.302 116
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Round-bottom Flasks, 25 ml, NS 14/23, DURAN®, pack of 10
In stock
Lenz-Laborglas Round Bottom Flasks, 25 mL NS14/23 Duran, Pack of 10

R 2,024.00

Inc. VAT

Part4.667 712
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Round-bottom Flasks, 50 ml, NS 14/23, DURAN®, pack of 10
In stock
Lenz-Laborglas Round Bottom Flasks, 50 mL NS14/23 Duran, Pack of 10

R 2,555.30

Inc. VAT

Part4.667 713
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Round-bottom Flasks, 100 ml, NS 29/32, DURAN®, pack of 10
In stock
Lenz-Laborglas Round Bottom Flasks, 100 mL NS 29/32 Duran, Pack of 10

R 2,884.20

Inc. VAT

Part4.667 716
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Mfr
Round-bottom Flasks, 100 ml, NS 14/23, DURAN®, pack of 10
In stock
Lenz-Laborglas Round Bottom Flasks, 100 mL NS 14/23 Duran, Pack of 10

R 2,985.40

Inc. VAT

Part4.667 714
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Round-bottom Flasks, 250 ml, NS 29/32, DURAN®, pack of 10
In stock
Lenz-Laborglas Round Bottom Flasks, 250 mL NS 29/32 Duran, Pack of 10

R 4,781.70

Inc. VAT

Part4.667 718
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Round-bottom Flasks, 50 ml, NS 29/32, DURAN®, pack of 10
In stock
Lenz-Laborglas Round Bottom Flasks, 50 mL NS 29/32 Duran, Pack of 10

R 2,454.10

Inc. VAT

Part4.667 715
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Plastic Hose Connections, straight
In stock
Lenz-Laborglas Plastic Hose Connections (Straight)

R 75.90

Inc. VAT

Part6.204 232
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Distilling Heads, Cone vertical 29/32 Cone oblique 29/32
In stock
Lenz-Laborglas Distilling Heads, Cone Vertical NS 29/32, Cone Oblique NS 29/32

R 1,189.10

Inc. VAT

Part9.012 173
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Distillation adapter NS 24/29 curved, long discharge
In stock
Lenz-Laborglas Distillation Adapter NS 24/29 Curved, Long Discharge

R 885.50

Inc. VAT

Part6.252 199
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Hollow Stoppres, Hexagonal Plate, Flat Bottom , NS 29/32
In stock
Lenz-Laborglas Hollow Stopper Hexagonal Plate Flat Bottom NS 29/32

R 278.30

Inc. VAT

Part6.070 533
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Splash Heads to Stutzer, Cone NS 29/32 Socket NS 29/32
In stock
Lenz-Laborglas Splash Heads To Stutzer, Cone NS 29/32, Socket NS 29/32

R 1,922.80

Inc. VAT

Part9.012 193
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Drip catcher according to Stutzer core NS 14/23 + sleeve NS 29/32, straight
In stock
Lenz-Laborglas Drip Catcher According to Stutzer (Core NS 14/23, Sleeve NS 29/32)

R 3,364.90

Inc. VAT

Part6.202 459
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Round-bottom Flasks, 50 ml, NS 29/32, DURAN®
In stock
Lenz-Laborglas Round Bottom Flasks, 50 mL, NS 29/32, DURAN

R 253.00

Inc. VAT

Part9.011 835
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Round-bottom Flask 100 ml, NS 29/32, DURAN®
In stock
Lenz-Laborglas Round Bottom Flask, 100 mL, NS 29/32, DURAN

R 303.60

Inc. VAT

Part9.011 840
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Round-bottom Flasks, 250 ml, NS 29/32, DURAN®
In stock
Lenz-Laborglas Round Bottom Flasks, 250 mL, NS 29/32, DURAN

R 607.20

Inc. VAT

Part9.011 845
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Round-bottom Flask 500 ml, NS 29/32, DURAN®
In stock
Lenz-Laborglas Round Bottom Flask 500 mL NS 29/32, Duran

R 809.60

Inc. VAT

Part9.011 850
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Round-bottom Flasks, 1000 ml, NS 29/32, DURAN®
In stock
Lenz-Laborglas Round Bottom Flask 1000 mL NS 29/32, Duran

R 1,138.50

Inc. VAT

Part9.011 855
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Round-bottom Flasks with Conical Joint, Cap. ml 2000 Socket NS 29/32
In stock
Lenz-Laborglas Round Bottom Flasks with Conical Joint, Capacity 2000 mL Socket NS 29/32

R 1,922.80

Inc. VAT

Part9.011 860
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Round-bottom Flasks with Conical Joint, Cap. ml 1000 Socket NS 45/40
In stock
Lenz-Laborglas Round Bottom Flasks with Conical Joint, Capacity 1000 mL Socket NS 45/40

R 2,175.80

Inc. VAT

Part9.011 869
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Round-bottom Flasks, 25 ml, NS 14/23, DURAN®
In stock
Lenz-Laborglas 25 mL Round-Bottom Flask, with NS 14/23 Joint

R 202.40

Inc. VAT

Part9.011 802
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Round-bottom Flasks with Conical Joint, Cap. ml 5000 Socket NS 29/32
In stock
Lenz-Laborglas Round-bottom Flasks With Conical Joint, Capacity 5000 ml Socket NS 29/32

R 4,756.40

Inc. VAT

Part9.011 864
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Mfr
Round-bottom Flasks, 500 ml, NS 29/32, DURAN®, pack of 10
In stock
Lenz-Laborglas Round-bottom Flasks, 500 ml, NS 29/32, DURAN, pack of 10

R 6,223.80

Inc. VAT

Part4.667 719
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Mfr
Round-bottom Flasks, 5 ml, NS 14/23, DURAN®, pack of 10
In stock
Lenz-Laborglas Round-bottom Flasks, 5 ml, NS 14/23, DURAN, Pack of 10

R 3,516.70

Inc. VAT

Part4.667 710
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Cones, NS 19/26
In stock
Lenz-Laborglas Cones NS 19/26

R 101.20

Inc. VAT

Part9.011 506
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Cones, NS 29/32
In stock
Lenz-Laborglas Cones NS 29/32

R 126.50

Inc. VAT

Part9.011 508
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Cones, NS 10/19
In stock
Lenz-Laborglas Cones NS 10/19

R 126.50

Inc. VAT

Part9.011 503
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Funnels with Cone, Cone NS 14/23 O.D.mm 45
In stock
Lenz-Laborglas Funnels with Cone NS 14/23, OD 45mm

R 784.30

Inc. VAT

Part9.251 340
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Funnels with Cone, Cone NS 29/32 O.D.mm 80
In stock
Lenz-Laborglas Funnels with Cone NS 29/32, OD 80mm

R 1,467.40

Inc. VAT

Part9.251 343
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Gas Inlet Tubes / Air Leak Tubes, Straight, Cone NS 14/23
In stock
Lenz-Laborglas Gas Inlet Tubes / Air Leak Tubes, Straight Cone NS 14/23

R 480.70

Inc. VAT

Part9.012 301
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Dropping Funnels, Cylindrical , Cap. ml 50 Socket/Cone NS 29/32
In stock
Lenz-Laborglas Dropping Funnels, Cylindrical, Capacity 50 mL, Socket/Cone NS 29/32

R 1,897.50

Inc. VAT

Part9.012 742
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Mfr
Flat Bottom Flasks with Conical Joint, Cap. ml 50 Socket NS 29/32
In stock
Lenz-Laborglas Flat Bottom Flasks with Conical Joint, Capacity 50 mL Socket NS 29/32

R 278.30

Inc. VAT

Part9.011 982
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Mfr

Frequently asked questions

Borosilicate 3.3 glass has a very low coefficient of linear expansion. This makes it highly resistant to thermal shock, allowing it to be heated and cooled rapidly without the risk of breaking compared to standard soda-lime glass.