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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
For Your Every Summer RSVP, with Code: SUMMER15
Description
PALL AP-4917 Acrodisc One Syringe Filters with wwPTFE membrane - 0.45 µm AutoPack tubes (25/pkg, 200/cs)Syringe filters are used in analytical chemistry applications to remove particulate contamination prior to analysis. Filtering a sample prior to sample injection into analytical instrumentation will help protect sensitive parts of the instrument from particulate build up and reduce system downtime. Sample filtration using syringe filters containing 0. 45 m (HPLC) or 0. 2 m (UHPLC) pore size membranes will also extend the life of chromatography columns
Syringe filters are used in analytical chemistry applications to remove particulate contamination prior to analysis. Filtering a sample prior to sample injection into analytical instrumentation will help protect sensitive parts of the instrument from particulate build-up and reduce system downtime. Sample filtration using syringe filters containing 0.45 μm (HPLC) or 0.2 μm (UHPLC) pore size membranes will also extend the life of chromatography columns by preventing particulate from blocking the flow path between the column packing. Pall’s Acrodisc One PSF Syringe Filters with wwPTFE membranes have been designed to protect analytical instrumentation and improve the reliability of results. wwPTFE membrane devices are chemically compatible with a wide variety of common solvents and are suitable for use in both aqueous and organic applications. These syringe filters are constructed with solvent compatible polypropylene material. The polypropylene plastic provides the syringe filter with exceptional strength, it is the highest grade of plastic with minimal additives and passes United States Pharmacopeia (USP) Biological Reactivity Test, In Vivo <88> plastics testing. Both the wwPTFE membrane and polypropylene housing are extremely low in levels of potential extractables that can lead to chromatographic interference. The devices are low in protein and API binding which make them ideal for drug studies, such as dissolution testing. Pall provides HPLC certification with these products, ensuring that analytical results will not be compromised by extractable filter materials. Pall membranes are tested for compatibility with common HPLC solvents including water, methanol, and acetonitrile, using established HPLC procedures. In addition, to verify low levels of UV-detectable extractables, samples of the syringe filters are evaluated prior to release. Acrodisc PSF Syringe Filters feature a large effective filtration area (3.9 cm2) for increased sample throughput, ideal for sample volumes of ≤ 150 mL. Pall Acrodisc PSF Syringe Filters are designed to be fully compatible for use with automated robotic handling systems offering reliable and worry-free operation. The syringe filters are supplied in ready to use autopack tubes that can be easily loaded into automated systems.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
4.2 ★★★★★
Based on 797 reviews
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Product Reviews
★★★★★ 5
Compact & soft cap
Color: Dark Navy, Size: One Size
Great fall/winter hat if you’re looking for something that’s not too bulky. I wanted for a winter hat that I could just keep in my inside pocket of my winter jacket - problem was the pocket was not very big. I had another knit cap that just did not fit in there. The Danish Endurance beanie fits the bill! Being so thin, it is not my warmest beanie – but gets the job done! It also feels so soft. I bought another in a different color!
The hat arrived with a few creases in it. You could steam it, but don’t really notice any wrinkles when you put it on. I wish they made it in a darker gray/charcoal.
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Reviewed in the United States on January 26, 2026
★★★★★ 4
Soft but flimsy
Color: Dark Navy, Size: One Size
Its soft and warmth is ok, but it feels very thin and a bit flimsy. The knit at the top looks particulary fragile. I think for the price this is still ok value but I do not expected it to last a long time.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
Cozy hat
Color: Light Grey Melange, Size: One Size
The hat is thin but it does keep my head warm.
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Reviewed in the United States on April 30, 2026
★★★★★ 1
Cashmere but far too thin
Color: Dark Navy, Size: One Size, Color: Dark Navy, Size: One Size
The beanie feels soft and genuinely made of cashmere, but the fabric is surprisingly thin — almost transparent when held to the light. It lacks the warmth and structure you’d normally expect from a cashmere item.
The design and packaging are pleasant, but the overall impression is disappointing. It’s comfortable to touch yet too delicate to provide real protection against the cold.
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Reviewed in the United States on October 16, 2025
★★★★★ 5
Cool hat.
Color: Dark Navy, Size: One Size
This is a nice little hat. Even though it’s really thin, it does seem to keep my head warm. Really haven’t tried it out in the wind yet. But saying that you could put another hat on top of it.
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Reviewed in the United States on January 20, 2026
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