Product Description
Moving small volumes of gas through an apparatus or collecting an air sample does not require a powered pump. This Heathrow Scientific vacuum and pressure bulb provides hand-operated suction or pressure, giving you simple, portable control for gas sampling and for pushing gas through tubing and glassware.
This listing is for catalog number HS20631B: Rubber Bulb 85 mL Without Tubing, Black. The heavy-wall black natural rubber bulb has an 85 mL capacity and includes two rubber valves with PVC connectors, so flow moves in one direction with each squeeze. It measures 4.2 x 2.1 in with a 7.4 mm opening. Tubing is not included; connect your own to suit the setup. Add it to your LIGHT LABS order and keep your lab stocked.
Key Features
- Dual-function – Generates vacuum or pressure by hand.
- Two rubber valves – Directs flow in one direction with each squeeze.
- PVC connections – Accepts user-supplied tubing.
- Heavy-wall natural rubber – Durable 85 mL bulb holds its shape.
Specifications
| Catalog Number | HS20631B |
| Brand | Heathrow Scientific |
| Description | Rubber Bulb 85 mL Without Tubing, Black |
| Sold As | Each |
| Volume | 85 mL |
| Material | Natural rubber |
| Valves | 2 rubber valves with PVC connections |
| Dimensions (L x OD) | 4.2 x 2.1 in (106 x 52 mm) |
| Hole diameter | 0.29 in (7.4 mm) |
| Tubing | Not included |
Applications
- Gas sampling
- Pumping gas through apparatus
- Aspirating through tubing setups
- Chemistry teaching demonstrations
