7 Best 500ml vacuum flask [2022]

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1. StonyLab Glass 500ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation, 500ml

  • Made of borosilicate glass
  • Flasks have a narrow mouth and tooled top finish
  • Capacity: 500 milliliters
  • Special notice: As this item is handmade, please allow an error range of 2~3mm
  • StonyLab ensures high quality products and premium customer service; if received damaged, please contact us immediately; we will solve it until satisfied

2. FENNEN Math Formula Double Walled Stainless Steel Thermos Water Bottle Vacuum Cup Insulated Leak Proof Flask Jug for 500ML Coffee Tea Water

  • Please Select “GIRLSS” for genuine products and nice services. Healthy Material: The body of flask is made of double walled stainless steel structure with high vacuum brazing technology with PU leather wrapped and accessories for food grade PP materials. The thermos is safe and hygienic to you.
  • Double Walled: Our water bottles are double wall stainless steel for extra protection and insulation. The thermal bottles contain zero harsh chemicals for your healthy drinking water.
  • Suitable Size: 17oz, 10.24(In)H*2.36(In)W. 500ML capacity is suitable for people at work at school or outdoor sports.
  • Practical: The good insulation performance not only keeps your ice from melting, but also will keep your hot drinks steaming all morning.
  • Our Promise: We know you’ll love our products as much as we do! However, if for any reason you are not happy with your shopping, please contact us and we’ll do our best to solve your problem.Wish you a happy shopping day!

3. MIRA Alpine Stainless Steel Vacuum Insulated Water Bottle with 2 Lids, Durable Powder Coated Thermos Flask – Hydro Bottle – 17 oz (500 ml) – Matte Pearl Blue

  • MiraGuard Technology: Double-walled vacuum insulation keeps drinks ice cold for up to 24 hours, or piping hot up to 12 hours. Our innovative technology uses an inner copper lining that prevents the bottle from sweating. Fill up your bottle with your favorite cold beverage and feel refreshed all day!
  • Built to Last: This sleek and rugged sports water bottle is made of high-grade 18/8 stainless steel that won’t rust or break. Whether you are playing your favorite sport or at work, your bottle will always provide a fresh, clean taste that won’t retain or transfer flavors.
  • Health in Mind: Drink with confidence, all caps are BPA-free and phthalate-free. Do good for your body and the planet by staying hydrated with a reusable water bottle. This reusable water bottle compactly holds a high capacity of liquids, making it easier to drink more water and improve your overall health.
  • Functional Style: Alpine bottles come with two versatile lids. The stainless steel lid with a carry handle and the bonus sports cap are perfect for school, work, travel, and fitness. The bonus sports cap provides an easy liquid flow so that you can conveniently drink water while working out. This leak-proof bottle comes in various beautiful colors and prints. Solid colored bottles have a unique powder coat finish that provides extra durability and a slip-free grip.
  • Perfect Size: Comfortably carry this quality bottle in your hand or effortlessly fit the 17 oz or 25 oz bottle in your vehicles cup holder. Alpine bottles fit popular bottle accessories such as carabiners, bottle carriers and cleaning brushes. Easily fit ice cubes in your bottle for an extra cool drink.

4. Outdoor Travel Cup 304 Stainless Steel Thermos Vacuum Bullet Flask 17 oz 500ML

  • The insulation cup is made of double-layer Food grade stainless steel vacuum insulation to keep the water temperature to the greatest extent
  • Stainless steel vacuum bullet thermos Has 17oz (500ml) capacity
  • Hot drinks can keep heat preservation effect for 12 hours, cold drinks can keep heat Thermos preservation effect for up to 24 hours
  • Airtight stopper prevents liquid leakage, bottle cap can be used as water cup
  • When traveling outdoors, picnics, driving, fitness, offices, schools, please bring this easy-to-carry water bottle. It is a great gift for any occasion.

5. Goetland 304 Stainless Steel 17 oz 500 ml Bullet Tumbler Water Bottle Vacuum Insulated Cup Travel Mug Flasks No logo Dark Copper

  • Pure color design without logo, brand, image on the cup body to be customized as you like. Some creative ideas are shown in Product Picture or Reviews for reference
  • 17 US fl oz (500 ml) in bullet shape is the prefect size keeping hydrated outdoors and fitting in your bag easily. Please remove the desiccant pack inside before first use
  • Made of 100% BPA-free, food grade 304 Stainless Steel both outside and inside walls. You could turn your bottle in any direction without leak
  • Keep water/liquids hot up to 12 hours or cold up to 24 hours. A big bonus if you fit some ice cubes in it in hot summer
  • Suitable for all ages. Comes in a good box which makes it easy to wrap for a gift for your family, friends on anniversary, birthday, festival, Christmas, Thanksgiving Day

6. Poafamx Lab Vacuum Filtration Distillation Apparatus 500ml Flask Borosilicate Glass 300ml Funnel Set for Laboratory Solvent Filtering

  • [LABORATORY STANDARDS QUALITY] The places that directly contact with the solution of the filtration apparatus is made of high borosilicate glass, which is tough, durable and heat-resistant designed to handle boiling liquids and strong vacuums.This filtering flask comes with a plastic filter cup cover and aluminium alloy clamp that allow for strong vacuums.
  • [VACUUM FILTRATION WITH WIDE APPLICATION]Vacuum filtration allows you to filter water-soluble solutions without damaging or losing heat-sensitive compounds during distillation. Suitable for lab, chemical, biological analysis, environmental monitoring, industrial and scientific research. It’s perfect for students, and it fits in great with the small home laboratory.
  • [WELL-PROTECTED PACKAGE]The setup came with well-protected. Each part is individually wrapped and cased in Styrofoam to ensure that the goods will not easily damaged during transportation. If you have any questions about the distillation filtration unit, you can contact us, and our customer service is ready to help you at any time.
  • [EASY TO OPERATE AND USE]The kit can be set up in minutes and is easy to disassemble, clean and store. You can return it to the packaging for storage.
  • [EXTRA PUMP AND FILTER MEMBRANCE NEED TO BUY] All of these three models are equipped with 300ml filter cup, 40mm sand core and clamp.It does come with a small hose of the right diameter to attach a vacuum pump to the filter apparatus, but you have to buy 50mm filter membrane and pump extra according to your needs. Make sure to match this with a good quality vacuum filtration pump and you can get a good filter experience.

7. Gtell Double Wall 18/8 Stainless Steel Vacuum cola shape bottle, narrow mouth thermos flask keeping warm and cold 350ml 500ml 750ml 1000ml (500ml)

  • Double wall vacuum insulated perfection in a stemless wine tumbler made from lifelong Stainless Steel! Set off on your refreshing picnic, hiking or camping adventures with your water, wine, or cocktail icy-cold for 9 hours or your coffee and tea scalding-hot for over 3 hours!
  • It is an insulated stainless steel wine cup with a removable BPA-free lid, designed for SWEAT-FREE convenience! Use it as a wine tumbler or stick your straw in your refreshing drink through the straw-friendly lid!
  • It is made from unbreakable 304 18/8 food grade stainless steel, with DOUBLE-WALL insulation.
  • Shatterproof, dishwasher safe, transportable, unbreakable, freezable, rustproof, and recyclable.
  • Perfect for boating, hiking, dinner, parties, picnics or sitting by the pool.

8. American Fristaden Lab Vacuum Filtration Distillation Apparatus | 500mL Filtering Flask | 300mL Graduated Funnel | 1 Year Warranty

  • PURE SOLUTIONS: The filtering lab flask can be used to separate components or impurities in your mixtures or solutions. The filtration apparatus is built to last with tough, heat resistant borosilicate beaker glass designed to handle boiling liquids and strong vacuums. The glass is packaged tightly and thoroughly inspected to guarantee you receive an unblemished product.
  • LAB QUALITY, MANY USES: Use the 500mL filtering flask for chemistry experiments in the lab or school; to make e-juice, distilling, concentrate and oils; to filter essential oils and plant extracts; to make soap; and more!
  • FAST FILTERING ACTION: The filtering and distillation kit can be used with or without a vacuum. For faster, higher volume jobs, just hook up a vacuum hose to the filtering flask and quickly pull your solution through the funnel. A lab vacuum filtration apparatus allows you to filter oil and water soluble solutions without damaging or losing heat-sensitive compounds in a distillation. This filtering flask comes with a high quality rubber stopper and aluminum clamp that allow for strong vacuums.
  • EASY TO USE: The kit can be set up in minutes and is easy to disassemble, clean and store. The 2000mL filtering flask can handle larger jobs. The 300mL graduate funnel allows for easy measurement, unlike most Buchner funnel apparatuses. Best used with 42-60mm membrane filter paper.
  • OUR GUARANTEE: We are Fristaden Lab, an American lab equipment company. Questions about the distillation filtration apparatus? Our customer service knows this product well and is ready to help you.

9. Milton Thermosteel Flip Lid Flask 500, Double Walled Vacuum Insulated 500 ml | 17 oz | 24 Hours Hot and Cold Water Bottle with Cover, 18/8 Stainless Steel, BPA Free, Food Grade, Leak-Proof | Silver

  • Materia type: Stainless Steel; No. of pieces: 1; Capacity: 500 ML; Colour: Silver;
  • Insulation type: Double wall; Temperature retention: Yes (Keeps liquid hot/cold upto 24 hrs); Leak proof: Yes
  • Best Usage: Gym, Sports, School, Outdoors
  • : 1 year; Not covered in : The does not cover damages resulting from accidents, mishandling or tampering with the mechanism.
  • Fabricated inside and outside in 18/8 quality stainless steel; its tough and durable.

10. United Scientific FG5340-500 Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 500ml Capacity

  • Autoclavable: Yes
  • Material: Borosilicate Glass
  • Description: Filtering Flask, Borosilicate Glass; 500 mL
  • Graduation Interval (mL): 50
  • Bottom Outside Diameter (mm): 108

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