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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
Vacuum Pump ChemkerVacuum Pump Chemker 300 411 611 is designed for chemical resistant vacuum applications, featuring PTFE components for superior durability. Perfect for laboratories, chemical analysis, and industrial vacuum processes requiring high chemical resistance. Features and Benefits: Superior Chemical Resistance All wetted parts of Checker pumps are made of PTFE and FFKM material, making them resistant to most corrosive gases. Oil Free Maintenance Free Drive by
Vacuum Pump Chemker 300/411/611 is designed for chemical-resistant vacuum applications, featuring PTFE components for superior durability. Perfect for laboratories, chemical analysis, and industrial vacuum processes requiring high chemical resistance.
Features and Benefits:
- Superior Chemical Resistance
All wetted parts of Checker pumps are made of PTFE and FFKM material, making them resistant to most corrosive gases.
- Oil Free / Maintenance Free
Drive by diaphragm, without the need of lubricant, regular oil changes and maintenance; with no oil pollution
- Quiet and Low Vibration
Mechanism technique and quality vibration proof assembles make pumps run at the lowest noise with stability
- Overheat Protection
Equipped with overheat protection device that shuts down when overheated and resumes once cooled down, making the pump safe and long lasting
Certifications:
- CE certification
- UKCA certification
- RoHS certification
Applications:
- Solvent purification
- Solid-Phase Extraction
- Gel electrophoresis
- Vacuum filtration
Pack Size: Each
Warranty: 12 months
| Product | Max Vacuum | Max Flow Rate | Weight | LxWxH |
| Chemker 300 | 99mBar abs. | 18L/min | 5kg | 20 x 11 x 21cm |
| Chemker 411 | 10mBar abs. | 18L/min | 7.4kg | 26 x 24 x 19cm |
| Chemker 611 | 7mBar abs. | 30L/min | 13.7kg | 35 x 20 x 24cm |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 2480 reviews
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Product Reviews
★★★★★ 3
Love it but it stains
Color: Haze Blue, Size: 2 Pack Standard（20"X 26"）
I love these but had to knock some stars down for a single reason. They are soft, the material is somehow both substantial and airy at the same time, and a smooth, silky (not satin), cozy texture. The color was exactly as pictured. The envelope style works great to keep my pillows covered. The fabric lays perfectly. I love sleeping on this pillow case.
Took two stars off because every single atom of oil on my face stained it immediately and won't come out in the wash. Its not subtle. You can see anywhere my face has been, forever. I don't have some incredibly oily face or hair, I've never had this happen to another pillow case in my life.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Good buy
Color: Navy Blue, Size: Body（20"X 54"）
Nice and soft , well packaged and looks good. Kinda pillowcase you find in a luxury hotel
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Silky and Soothing
Color: Cream, Size: 2 Pack Queen（20"X 30"）
I thought I was getting 1 of the queen sized but I got 2. I got these for my Pomeranian's fuzzy pillow. He's always hot and these are very cooling and very good quality. He loves them and are very comfortable for him. They totally transformed his shaggy old pillow. I used the larger body pillow covers to replace the covers I had. They matched my bedspread perfectly. I use 2 body pillows along the exterior wall in my bedroom where there is cold coming through the floor in the winter. I'm sure I will enjoy them in the summer when it's hot too!
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Reviewed in the United States on January 10, 2026
★★★★★ 5
Comfortable and stays cool
Color: White-cooling Basic, Size: Queen(Pack of 1)
Great pillow. When i opened it, i noticed a strange smell, i assumed its the smell of whatever they use to make the pillow stay cool. You have to fluff it for a good amount of time to make sure the cooling agent spreads well in the foam. Is what i assumed atleast. Its a perfect amount of softness for me. Pair it with some bamboo pillow cases and you got a good night of sleep
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Reviewed in the United States on May 9, 2026
★★★★★ 5
BEST, MOST COMFORTABLE PILLOWS EVER!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I've used others.BEST PILLOWS EVER! Firm, cooling and supportive. LOVE THESE!
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Reviewed in the United States on May 28, 2026
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