SKU: 46572544419

PALL 4219-N Acrodisc Syringe Filters with PTFE Membrane - 0.45 µm, 25mm (50/pkg, 200/cs)

Sale price$388.22 Regular price$431.36
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Description

PALL 4219-N Acrodisc Syringe Filters with PTFE Membrane - 0.45 µm, 25mm (50/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.

PTFE membrane is highly chemically compatible for the filtration of harsh solvents that can destroy other membrane materials. PTFE is a hydrophobic membrane, so it will repel water and is not suitable for the filtration of aqueous solutions.

As well as being suitable for the filtration of organic solvents in applications such as HPLC and UHPLC sample preparation, the hydrophobic nature of the PTFE membrane makes these syringe filters ideal to use in gas filtration or as a moisture barrier in venting applications.

25 mm Standard Acrodisc Syringe Filters

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SKU: 46572544419

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keyjustice
Whiting, US
★★★★★ 3
Hard, heavy, sharp
Color: Cyan NylonFish
This is very durable, but it is also very heavy (our dog likes to throw her toys) and after some chewing, the head and tail are very sharp
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Reviewed in the United States on April 25, 2026
B
Verified Purchase
BellaGi
Lake Worth, US
★★★★★ 5
2 years later and it’s still going!
Color: Cyan NylonFish, Color: Cyan NylonFish
I have 2 dogs, a 6lb chihuahua (Lolli) and an almost 100lb German shepherd/Belgian Malinois (Uzi). Got this for Uzi, however, Lolli had other plans for it. She literally took it out her mouth and ran to hide it. It’s been over a year, closer to 2 and it’s still hanging on. Attached a photo of Lolli…
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Reviewed in the United States on May 19, 2026
S
Verified Purchase
steven casteel
Grantham, US
★★★★★ 5
Best found
Color: Cyan NylonFish
I have a heavy heavy chewer, the only things that has escaped him were items like "kong" solid and rubber but no squeaky. He quickly lost interest in the toy; largely within a week at most and never picks it up again unless really bored. Squeaky toys had a life shelf of a week at best, that is with us taking them away to "preserve" them for longer. So far, this toy, the fish, has been the longest surviving squeaky and the longest at keeping his interest. it has received some cosmetic damage, but nothing that would make you remove the toy from his possession and it STILL squeaks.
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Reviewed in the United States on October 20, 2024
C
Verified Purchase
Courtney
Lake Worth, US
★★★★★ 4
Still holding up to my super-chewer!
Color: Cyan NylonFish, Color: Cyan NylonFish
It's a very good product. I would recommend this toy for a heavy chewing dog. My main reasons it's not 5 stars, it's HEAVY and the eyes peeled right off. My pup really likes to throw his toys around, this thing sounds like a cannon ball that's going to go through our floor! He also tries to destroy everything so he was chewing on the eyes and he would have definitely eaten them if I wasn't paying attention. It's not a horrible thing but I obviously don't want him to eat non food things. My dog also likes the squeaker in it, but it's difficult for me to get it to squeak. That's not a big deal though just thought I should mention it. Overall especially for the price, it's a good sturdy product that's cute and it's still holding up. He's chewed parts of the softer areas off a bit, but the rest is very hard so he hasn't made much of a dent. It's also about as big as his head, so he's pretty happy with it!
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Reviewed in the United States on January 18, 2025
P
Verified Purchase
Patrick
New York, US
★★★★★ 5
Worth it if your dog destroys plush toys & likes to chew
Color: Cyan NylonFish
My dog is a very big chewer and destroyer of toys. This toy is perfect for her. It is durable and keeps her engaged chewing for a while. I have a 55lb dog, considered a large dog, and it’s a great size for her. She’s unable to break it apart. The ends do tend to get a little sharp after extended use
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Reviewed in the United States on February 14, 2026

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