Eisco Dropping Funnels with Screw Type Needle Valve PTFE Rotaflow Stopcocks

Dropping Funnels with PTFE Rotaflow needle valve stopcocks and sockets fitted with interchangeable plastic stoppers.

Cylindrical ungraduated glass dropping funnel
Fitted with an interchangeable plastic stopper and screw type needle valve PTFE Rotaflow stopcock for more precise drop control
Made of durable, high quality borosilicate 3.3 glass which withstands high temperatures and thermal shocks
Used for extractions or to dispense liquids into a system slowly (drop-wise)

Autoclavable, with superior chemical durability. Low temperature gradient - can withstand high temperatures and thermal shocks.

Eisco Labs Borosilicate glass has the following heat tolerances:
- Strain Point 515 °C
- Annealing Point 565 °C
- Softening Point 820 °C

Price

$28.00–$33.90

2 options available below

Dropping Funnels with PTFE Rotaflow needle valve stopcocks and sockets fitted with interchangeable plastic stoppers.

Cylindrical ungraduated glass dropping funnel
Fitted with an interchangeable plastic stopper and screw type needle valve PTFE Rotaflow stopcock for more precise drop control
Made of durable, high quality borosilicate 3.3 glass which withstands high temperatures and thermal shocks
Used for extractions or to dispense liquids into a system slowly (drop-wise)

Autoclavable, with superior chemical durability. Low temperature gradient - can withstand high temperatures and thermal shocks.

Eisco Labs Borosilicate glass has the following heat tolerances:
- Strain Point 515 °C
- Annealing Point 565 °C
- Softening Point 820 °C