Representative Image

Bohlender b.safe Cap GL45, with Stopcocks 2x UNF 1/4"

Brand:Bohlender

Capillary connections

No. of fittings

No. of stopcocks

Specifications

Compare models
Capillary connections
1
Material
PPS
No. of fittings
1 x 3,2 mm
No. of stopcocks
1
Thread
GL 45
UNSPSC
41115700

$281.73

Inc. GST

Available soon

Product description

The Bohlender b.safe Cap GL45, with Stopcocks 2x UNF 1/4" is a high-quality screw cap designed for secure solvent storage and handling in laboratory environments. Made from durable PPS material, it features a freely rotatable PTFE insert and two female UNF 1/4" (28G) threads equipped with integrated stopcocks for connecting capillary tubing with an outer diameter of 3.2 mm. An additional capillary connector is located on the bottom side of the lid, enhancing flexibility. The cap also includes a b.safe air valve with a service life indicator to ensure safe and efficient solvent management, especially suited for HPLC solvent reservoirs.

Key Features:

  • Brand: Bohlender
  • Material: PPS cap with PTFE insert
  • Thread Type: GL45
  • Capillary Connections: 2 x UNF 1/4" (28G) with integrated stopcocks
  • Additional Connector: Capillary connector on bottom side of lid
  • Air Valve: Integrated with service life indicator
  • Compatibility: Suitable for HPLC solvent reservoirs
  • Autoclavable: Yes

Scope of Supply:

  • Connections with integrated stopcocks
  • PFA fittings (top and bottom)
  • Air valve with service life indicator

This cap offers an excellent combination of functionality, safety, and reliable solvent handling for demanding laboratory applications.

Downloads

Accessories

Air valves, PP

ProductMaterialØMfr#Part#AvailabilityPrice
PP20 mmM 505-016.313 842In stock$104.54
PP20 mmM 505-026.313 843In stock$354.38
PP20 mmM 505-056.313 844In stock$1,530.90

Fittings, PFA, for Caps and Waste Caps

ProductMaterialColourMfr#Part#AvailabilityPrice
PFAGreenM 501-064.681 835$90.37
PFAVioletM 501-114.681 836$90.37
PFAGreyM 501-124.681 837$90.37
PFAWhiteM 501-154.681 838$90.37
PFABlueM 501-164.681 839$90.37
PFARedM 501-174.681 840$90.37
PFAYellowM 501-184.681 841$88.59

Compare similar models

b.safe Cap GL45 with Stopcocks 2x UNF 1/4"

Manufacturer P/N

M 143-01

Part Number

4.681 551

Manufacturer

Bohlender

Capillary connections

1

b.safe Cap GL45 with Stopcocks 3x UNF 1/4"

Manufacturer P/N

M 143-02

Part Number

4.681 552

Manufacturer

Bohlender

Capillary connections

2

b.safe Cap GL45 with Stopcocks 4x UNF 1/4"

Manufacturer P/N

M 143-03

Part Number

4.681 553

Manufacturer

Bohlender

Capillary connections

3

Frequently asked questions

It is a high-quality screw cap designed for secure solvent storage and handling in laboratory environments. Made from durable PPS material, it features a freely rotatable PTFE insert and two female UNF 1/4" (28G) threads equipped with integrated stopcocks for connecting capillary tubing with an outer diameter of 3.2 mm. An additional capillary connector is located on the bottom side of the lid, enhancing flexibility. The cap also includes a b.safe air valve with a service life indicator to ensure safe and efficient solvent management, especially suited for HPLC solvent reservoirs.

Insights

Explore
Burette vs Pipette: Key Differences and Which to Use

1 min read

Burette vs Pipette: Key Differences and Which to Use

This guide explains the practical difference between a burette and a pipette, two instruments that are often confused because both dispense measured volumes of liquid, but that are built for genuinely different jobs. It breaks down how a burette's stopcock and full-length graduated scale let an operator dispense a variable, watched volume and stop the instant a reaction reaches its endpoint, versus how a pipette (volumetric, graduated or micropipette) is built to transfer one known or pre-set volume in a single action. Rather than presenting the two as competing options, the piece frames them as complementary tools tied to different steps in a procedure: burettes for titration and any reaction where the target volume isn't known in advance, pipettes for sample preparation, dilutions and any step where the volume is already fixed.

Read full story
Top 5 Brands for Graduated Cylinders in 2026

1 min read

Top 5 Brands for Graduated Cylinders in 2026

This guide compares the five graduated cylinder brands most commonly used across Australian laboratories: Hirschmann Laborgeräte (DURAN® glass), Kartell (PMP plastic), ISOLAB Laborgeräte, BRAND (BLAUBRAND®) and VITLAB. Rather than treating graduated cylinders as interchangeable, it breaks down what actually separates them, Class A versus Class B accuracy tolerances, glass versus plastic construction, base stability and certification standards such as USP conformity, and explains which of these differences genuinely matter depending on the work.

Read full story
Top 5 Brands for Erlenmeyer Flasks in 2026

1 min read

Top 5 Brands for Erlenmeyer Flasks in 2026

This guide compares the five Erlenmeyer flask brands most commonly used across Australian laboratories today: DWK Life Sciences (DURAN®), ISOLAB Laborgeräte, LLG Labware, BRAND and Kartell. Rather than treating all Erlenmeyer flasks as interchangeable, it breaks down what actually separates them in practice, wall thickness consistency, thermal shock resistance, neck and closure compatibility, and material choice between borosilicate glass and polypropylene, and explains which of these differences matter for which kind of lab work.

Read full story

$281.73

Inc. GST