---
product_id: 647670485
title: "1000ml Filtering Flask, Bolt Neck with Tubulation, 3.3 Borosilicate, Heavy Wall, (Single)"
price: "541 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/647670485-1000ml-filtering-flask-bolt-neck-with-tubulation-3-3-borosilicate
store_origin: DK
region: Denmark
---

# 1000ml Filtering Flask, Bolt Neck with Tubulation, 3.3 Borosilicate, Heavy Wall, (Single)

**Price:** 541 kr
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 1000ml Filtering Flask, Bolt Neck with Tubulation, 3.3 Borosilicate, Heavy Wall, (Single)
- **How much does it cost?** 541 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/647670485-1000ml-filtering-flask-bolt-neck-with-tubulation-3-3-borosilicate)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

1000ml Filtering Flask, Bolt Neck with Tubulation, 3.3 Borosilicate, Heavy Wall, (Single)

## Product Details

- **Material:** Borosilicate Glass
- **Capacity:** 1000 Milliliters
- **Brand:** Karter Scientific
- **Bottom Shape:** Round
- **Manufacturer:** Karter Scientific

## Images

![1000ml Filtering Flask, Bolt Neck with Tubulation, 3.3 Borosilicate, Heavy Wall, (Single) - Image 1](https://m.media-amazon.com/images/I/41FaBXeZBgS.jpg)

## Questions & Answers

**Q: How much vacuum can it take without damage?**
A: All you have. It's thick and strong. I like it.

**Q: What is the inside diameter of the neck or what size rubber stopper fits the opening?**
A: Inside diameter is 1.34 inches (34.22mm)

**Q: What size tubing does this require?**
A: 3/8 PE tubing works well and won't collapse. Get a 4" length of that, adapt it down to the much more flexible 1/4 PE tubing with a push connector. Run that to a push connect one way valve with it's arrow pointing to the pump. That way a malfunctioning pump can't back-feed pump oil into your project.

**Q: I see the package dimensions posted.  What are the dimensions of the actual flask?  Height and base diameter?**
A: 11in high with a 7in base diameter.

---

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**Shop now:** [https://www.desertcart.dk/products/647670485-1000ml-filtering-flask-bolt-neck-with-tubulation-3-3-borosilicate](https://www.desertcart.dk/products/647670485-1000ml-filtering-flask-bolt-neck-with-tubulation-3-3-borosilicate)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-22*