PYREX 9990-100 Watch Glass Beaker Cover Glass/beaker

( Brand: Pyrex ), ( Part Type: Cover Watch Beaker Case ), ( Unit Type: Unit ), ( Manufacturer Part Number: 9990-100 ), ( Unit Quantity: 12 ), ( Intended Use/discipline: Biological Laboratory, Medical Laboratory, Microbiological Laboratory )

Review PYREX 9990-100mm Diameter Ribbed Watch Glass/beaker Cover Case Of

The Pyrex 9990-100 Watch Glass or Beaker Cover is a must-have lab essential for any scientific or kitchen application where you need to protect a Watch Glass or Beaker from external contaminants while still allowing easy observation of the experiment or process. This cover is made with borosilicate glass, known for its exceptional durability and resistance to thermal shock, ensuring its long-lasting use in various temperature conditions. It features a rounded base with a slightly inverted dome design, perfectly fitting and sealing over most standard Watch Glasses or Beakers. The cover's smooth edges prevent the accumulation of debris and facilitate effortless cleaning, while its transparent nature enables unobstructed visual access to the contents inside. This 12-pack allows you to keep multiple covers on hand for various applications or to maintain inventories for long periods. With its versatility, the Pyrex 9990-100 Watch Glass Cover is an indispensable addition to any lab setting or kitchen countertop.

A Comprehensive Analysis of Buying Pyrex Watch Glass 9990-100

pyrex 9990-100 watch glass, also known as beaker covers, is a versatile laboratory equipment product that can protect open containers from contamination or external influences. Here is an in-depth analysis of the benefits and drawbacks of purchasing this item.

1. Versatility: The pyrex watch glass can be used with various types of beakers, making it suitable for different laboratory experiments.

2. Resistant to thermal shock: Pyrex is known for its resistance to thermal shock, meaning the glass can withstand rapid temperature changes without cracking or breaking. This makes it an excellent choice for applications where temperature fluctuations are common.

3. Chemical resistance: The Pyrex watch glass is resistant to most chemicals commonly used in laboratory experiments. This makes it a handy tool for research and educational settings.

4. Clear and transparent: The transparency of the Pyrex material allows for easy monitoring of the content inside the beaker.

5. Durable: Pyrex glass is renowned for its durability, ensuring that the watch glass can withstand regular use in a laboratory setting.

1. Cost: Pyrex watch glasses can be on the pricier side compared to some plastic alternatives.

2. Breakage risk during handling: Despite its durability, the Pyrex watch glass can still be prone to breakage when dropped or mishandled.

3. Heavy: Compared to plastic covers, Pyrex watch glasses are significantly heavier, making them less portable and potentially more difficult to maneuver in certain experimental setups.

Despite the initial investment and potential handling issues, the pyrex 9990-100 watch glass offers several advantages as it is versatile, resistant to thermal shock and chemicals, and boasts a high level of transparency. Its durability ensures that it can withstand the demands of a laboratory environment. This makes the Pyrex watch glass a recommended investment for research and educational settings where safety, clarity, and longevity are essential requirements.

Details:

Ribs are molded into the glass so that they can't pop off as do when cane is sealed to standard watch glasses. Permits escape of excess vapor and eliminates risk contamination from dropped hooks or props. Meets EPA requirements for methods 3005, 3010, and 3020. These 100mm diameter ribbed PYREX watch glasses are designed for use as covers 600 ml beakers.

part #: 9990100 prices

• $70.00-$89.45

specifications quakedental:

• brand: Pyrex
• part type: Cover Watch Beaker Case
• unit type: Unit
• manufacturer part number: 9990-100
• unit quantity: 12
• intended use/discipline: Biological Laboratory, Medical Laboratory, Microbiological Laboratory

returns quakedental:

• policy: No Returns

payments quakedental:

• credit card: Diners-club
• wallet: Google-pay
• other

general quakedental:

• Business Industrial > Healthcare, Lab Dental > Other Healthcare, Lab Dental
• condition: New

seller quakedental:

• city: Amarillo, Texas
• # reviews: 34
• rating: 100.0%

offer quakedental:

• started: January 18, 2025
• sold: 0
• availability: In Stock
• quantity: 5
• options: Ship-to-home

shipping quakedental:

• transit: 5-10 Days
• carrier: USPS
• type: Calculated
• cost: $12.10
• class: Standard
• service: USPS Ground Advantage

Pyrex 9990-100 Is Similar To:

• Corning 9985-90 Pyrex 90 Mm Diameter Plain Watch Glass beaker Cover Cat 9985-90 11 Glasses (65.4% similar) Pyrex 90MM diameter plain watch glass/beaker cover. Price new: $90.80 cat #9985-90...(February 23rd, 2026)