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Lenz-Laborglas Stopcocks, Straight Bore with PTFE Plug, NS 18,8 Bore mm 4

Bore

Ground size

Specifications

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HS Code #
70172000
Bore
4.0 mm
Ground size
NS 18,8
Material
Boro 3.3
Material stopcock
PTFE key
Standard
DIN 12541-1
UNSPSC
41104812
With stopcock retaining device
Yes

R 1,239.70

Inc. VAT

Available soon

Product description

The Lenz-Laborglas Straight-Bore Stopcock NS 18.8 with a 4 mm bore is precision-engineered from DURAN® borosilicate glass 3.3 and fitted with a PTFE plug for outstanding chemical resistance and smooth operation. This stopcock includes a retaining device for enhanced safety and is ideal for laboratory use in flow control, vacuum systems, and distillation setups.

Key Features:

  • Brand: Lenz-Laborglas
  • Ground Joint Size: NS 18.8
  • Bore Diameter: 4 mm
  • Material: DURAN® (borosilicate glass 3.3)
  • Stopcock Plug: PTFE key for chemical-resistant, durable sealing
  • Design: Straight-bore configuration with retaining device
  • Application: Suitable for distillation, filtration, vacuum systems and precise fluid regulation in laboratory setups

The Lenz-Laborglas Straight-Bore Stopcock with PTFE Plug offers premium material quality, reliable flow control and long-term durability—ideal for demanding laboratory and analytical applications.

Accessories

Stopcock plugs, PTFE

ProductMaterialBoreMfr#Part#AvailabilityPrice
PTFE4.0 mm021714046.306 551In stockR 506.00
PTFE1.5 mm021712017.072 146In stockR 455.40
PTFE2.5 mm021712026.306 550In stockR 480.70
PTFE2.5 mm021714026.801 361R 480.70
PTFE4.0 mm021718047.018 955R 657.80
PTFE8.0 mm021724087.657 006R 1,771.00
PTFE6.0 mm021721067.603 864R 1,113.20
PTFE6.0 mm021718067.630 235R 733.70
PTFE10.0 mm021729106.266 985R 2,783.00

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Stopcocks, Straight Bore with PTFE Plug , NS 18,8 Bore mm 4

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Manufacturer P/N

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Stopcocks, borosilicate glass 3.3, with capillary side arms

ProductMaterialMaterial stopcockMfr#Part#AvailabilityPrice
Boro 3.3Glass key022214029.115 613In stockR 860.20

Frequently asked questions

It is precision-engineered from DURAN® borosilicate glass 3.3 and fitted with a PTFE plug for outstanding chemical resistance and smooth operation. This stopcock includes a retaining device for enhanced safety and is ideal for laboratory use in flow control, vacuum systems, and distillation setups.

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