Hand-Operated Vacuum Pump – 15 ml/Stroke, 725 ml Capacity, No Gauge, Case of 20 Lab Pumps by GSC International Inc.

$618.61 $399.10 -35%
SKU: GS-4-2062-CS Brand: GSC International Inc. Collection:Hands-On Learning Series
Hand-Operated Vacuum Pump – 15 ml/Stroke, 725 ml Capacity, No Gauge, Case of 20 Lab Pumps

  • Hand-operated vacuum pump for lab and STEM use
  • No gauge for simplified operation
  • Equipped with valves for controlled vacuum release
  • Suitable for classroom experiments and demonstrations
  • Bulk pack ideal for institutional use
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Hand-Operated Vacuum Pump – 15 ml/Stroke, 725 ml Capacity, No Gauge, Case of 20 Lab Pumps by GSC International Inc.

Ideal for classrooms, laboratories, and STEM environments, this Hand-Operated Vacuum Pump (Case of 20) provides a simple and effective way to demonstrate vacuum and air pressure principles. Designed without a gauge, it offers straightforward operation for basic experiments and group learning activities.

Each pump delivers a consistent pumping rate of 15 ml per stroke and can displace up to 725 ml of air, making it suitable for a variety of lab applications. Built-in valves allow for controlled release of vacuum, ensuring ease of use during repeated demonstrations.

Constructed from durable plastic, these pumps are lightweight yet sturdy enough for frequent classroom or lab use. Sold as a convenient case of 20 units, this set is perfect for schools, institutions, and group experiments.

Key Benefits

  • High Air Displacement Capacity: Each pump displaces up to 725 ml of air, ideal for effective lab and classroom demonstrations.
  • Efficient Pumping Rate: Provides 15 ml per stroke for consistent vacuum creation across all units.
  • Complete Product Dimensions: Each pump measures approximately 1.38" L x 8" W x 22" H, designed for comfortable handheld operation.
  • Bulk Case Pack: Includes 20 vacuum pumps, perfect for classrooms, labs, and group learning environments.
  • Lightweight & Easy Handling: Each unit is lightweight yet durable for repeated educational use.
  • Durable Plastic Construction: Built from sturdy plastic to ensure long-lasting performance.
  • UPC - 762047832555

Uber Bazaar guarantees all products to be free from defects in material & workmanship and our items are returnable within 30 days of delivery with original packaging. The refund will be the purchase price, minus the cost of outbound shipping. Return shipping is buyer's responsibility, so please be sure to package items well for shipment back to Uber Bazaar. This policy will apply to all orders, including items listed with "free shipping". Shipment refusals will be treated as a standard return.

An RMA number is required prior to returning the order, so please contact us at customerservice@uberbazaar.com to let us know about your return. We will provide you with a return RMA number and the return address. Package the item back in its original packaging and write your RMA number on the box.

Returns must be in their original packaging, unassembled, undamaged and in original condition. Return items are subject to inspection upon arrival, and any missing or damaged components will result in assessment and reduction of the final refund amount. In the instance a return is received without RMA and original packaging, refund might not be issued and return might be discarded.

In some instances, images may vary in color due to print process, monitor settings, or personal perceptions. We are not responsible for color variations.

This warranty does not include incidental or consequential expenses. No other warranty is implied.


Damage/Defect Policy
Uber Bazaar's Damage/Defect standard policy is to provide replacement items for all Damages and/or Defects reported within 30 days. Damages and/or Defects after 30 days are not covered.

Please provide photographs of the damaged items and/or parts that require replacement.

Once Uber Bazaar receives a replacement request and photographs, replacement item will be ordered from the manufacturer. This typically takes 5-7 business days. Once we receive your item, we will immediately ship it out to you, and will email you with your tracking information. In some rare circumstances an item may become unavailable, in those rare cases, we will contact you with an alternative resolution.

Please hold on to your damaged items. When you receive your replacement item tracking notification, we will advise if your damaged item can be disposed of or if we will need to schedule a return pick up.

After reviewing pictures, in some instances where an item is not easily replaceable a partial refund option can be discussed and determined at that time.

In an instance a customer cannot or has not provided photographs - return will be subject to inspection upon arrival at Uber Bazaar’s facility. Customer will be notified if reported damages are not found, and standard return policy fees will apply.

Hand-Operated Vacuum Pump – 15 ml/Stroke, 725 ml Capacity, No Gauge, Case of 20 Lab Pumps by GSC International Inc.
$618.61 $399.10
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