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- USA
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10
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Description
Ahlstrom Grade 542 Fluted Filter Paper - 100 CirclesAhlstrom Grade 542 Fluted Filter Paper 100 Circles Ahlstrom Grade 542 is the pre pleated version of Grade 642. Pleating improves the effective surface area which increases flow rate and loading capacity, thus decreasing filtration time. Ahlstroms pre pleated grades can save valuable time and maximize the efficiency of the laboratory filter system. Grade: 542 Diameter: 385mm and 185mm available Retention in m: 2. 0 m Filtration Speed punch Herzberg sec
Ahlstrom Grade 542 Fluted Filter Paper - 100 Circles
Ahlstrom Grade 542 is the pre-pleated version of Grade 642. Pleating improves the effective surface area which increases flow rate and loading capacity, thus decreasing filtration time. Ahlstrom’s pre-pleated grades can save valuable time and maximize the efficiency of the laboratory filter system.
- Grade: 542
- Diameter: 385mm and 185mm available
- Retention in µm: 2.0 µm
- Filtration Speed punch Herzberg sec/100mls: 229
- Filtration Speed Rapidity mls/min: 30
- Loading Capacity: Medium
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
4.1 ★★★★★
Based on 1415 reviews
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Product Reviews
★★★★★ 5
Beautiful design, perfect quality for seasoned destroyers.
Color: Crinkle Duck (Yellow), Size: Large
Absolutely adorable, excellent quality, I have a couple of monsters whose teeth make any kong toy tremble, I was very concerned whether something as soft and nice would last. So far so good.
Good looking and soft and tough at the same time!.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Best fun indestructible toy
Color: Crinkle Duck (Yellow), Size: Large
Truly indestructible no matter how much our oittie tries. She has owned it for three months works at destroying every day with no success. She carries it everywhere. Best purchase for chewer, more fun than the popular rubber heavy duty toy. Do not hesitate your pup will thank you for this fun distraction.
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Reviewed in the United States on May 30, 2026
★★★★★ 4
Happy with quality & price
Color: Crinkle Duck (Yellow), Size: Large
Lasts longer than most toys for the price
Only bought Kong or Outward Hound for
my 17 lb Lhasa Apso in the past a
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Long lasting ducks
Color: Crinkle Duck (Yellow), Size: Large
My dog hasn’t ripped this one open and she enjoys the crinkle. The squeaker has stopped, but it still has crinkle. It’s also really easy to clean. She has 3 in total.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
My puppy tore it up in about 5min. She had a ball while it lasted.
Color: Crinkle Duck (Yellow), Size: Large
Cute, not durable
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Reviewed in the United States on May 30, 2026