25ml Pipet Pipette Rubber Bulb Eisco Labs Red 5mm Hole Model CH0230D

Description

Product Overview

The Eisco Labs 25ml Pipet Pipette Rubber Bulb is engineered to meet the demanding requirements of modern laboratory work. Constructed from high‑quality red rubber, the bulb delivers a soft yet resilient feel that reduces hand fatigue during repetitive pipetting tasks. The integrated 5mm aperture is precisely machined to match standard pipette tips, providing a tight seal that prevents leaks and ensures accurate volume transfer. With dimensions of 10 × 8 × 1 inches and a lightweight profile of just 1.6 ounces, the bulb is easy to attach, remove, and replace, making it a practical choice for busy lab environments. The product carries the model identifier CH0230D and is backed by EISCO’s reputation for durable scientific accessories.

Usage

This rubber bulb is suited for a wide range of applications where precise liquid handling is essential. It performs reliably in chemistry labs, biology research facilities, medical diagnostics, and educational settings. Whether you are preparing reagents, conducting titrations, or performing cell culture work, the bulb’s ergonomic shape allows for smooth aspiration and controlled dispensing of fluids ranging from viscous solutions to delicate aqueous samples. The red color provides a visual cue that helps users quickly locate the bulb among other pipette accessories, reducing the chance of using an incorrect component. The bulb is compatible with most standard 25 ml pipettes, making it a versatile addition to any laboratory inventory.

Why Choose Us

Eisco Labs has a long history of supplying reliable laboratory equipment, and this rubber bulb reflects the company’s commitment to quality and user‑centered design. The material selection process prioritizes chemical resistance, ensuring that the bulb will not degrade when exposed to common solvents, acids, or bases encountered in routine lab work. Each bulb undergoes rigorous testing for elasticity, burst strength, and dimensional stability, guaranteeing consistent performance over thousands of cycles. In addition, Eisco provides responsive customer support and a straightforward replacement policy, so laboratories can maintain uninterrupted workflows. By choosing this product, you benefit from a blend of durability, precision engineering, and a trusted brand that understands the nuances of scientific research.

Key Features

• Durable red rubber material resists chemicals and wear for long‑term use.
• Precise 5mm hole ensures a leak‑free seal with standard pipette tips.
• Ergonomic shape reduces hand strain during high‑volume pipetting.
• Compact lightweight design fits easily into crowded lab benches.
• Responsive Eisco customer support offers quick replacements and assistance.

FAQ

What pipette models are compatible with this rubber bulb?

The bulb is designed to fit standard 25 ml pipettes that use a 5 mm tip connection. It works with most brands that follow the common pipette interface, including Eisco, Gilson, and Thermo Fisher models.

Is the rubber material safe for use with organic solvents?

Yes. The red rubber is formulated to be chemically resistant to a wide range of solvents, including ethanol, methanol, and many dilute acids and bases. For highly aggressive chemicals, we recommend checking compatibility charts or contacting Eisco support.

How many cycles can the bulb endure before it needs replacement?

Under normal laboratory conditions, the bulb can withstand several thousand aspiration‑dispense cycles while maintaining its elasticity and seal integrity. Users typically replace the bulb after noticeable softening or if a leak develops.

Can I purchase this bulb in bulk for a large laboratory?

Yes. Eisco Labs offers bulk purchasing options and can provide volume discounts for orders of 50 units or more. Contact our sales team for a customized quote and lead‑time information.

What is the warranty coverage for this product?

The rubber bulb comes with a one‑year limited warranty covering manufacturing defects. If the bulb fails due to a defect within this period, Eisco will replace it at no cost to the customer.