SKU: 7685214133

Celltreat 230712 Centrifugal Filter Unit 4mL, MWCO 30kDa, Non-Sterile, 8/pk

Sale price$41.62 Regular price$46.25
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Celltreat 230712 Centrifugal Filter Unit 4mL, MWCO 30kDa, Non-Sterile, 8/pkFilter cartridges feature PES membranes with 5, 10, 30, 50 or 100kDa size exclusion cut offs Large active membrane area with dual vertical design for fast and efficient processing Centrifuge tubes feature internal supports to securely position the filter cartridge Applications include sample concentration, molecule purification, protein fractionation, buffer exchange, and desalting Cartridge design prevents accidental over concentration of samples

Filter cartridges feature PES membranes with 5, 10, 30, 50 or 100kDa size exclusion cut-offs
Large active membrane area with dual vertical design for fast and efficient processing
Centrifuge tubes feature internal supports to securely position the filter cartridge
Applications include sample concentration, molecule purification, protein fractionation, buffer exchange, and desalting
Cartridge design prevents accidental over-concentration of samples
High sample recovery of >90%
Graduations on conical tube and filter cartridge are printed in bold, easy-to-read black ink
Large white marking area provides excellent contrast for identification
Filter cartridges are clearly printed with Molecular Weight Cut Off (MWCO) in daltons
Easy to write on flat surface HDPE caps feature integrated polyethylene liners for a leak-proof seal
Molded graduations in the conical bottom are ideal for small volume quantification
Standard centrifuge tube rotor compatibility
Operating temperature range of 0C – 40C

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 7685214133

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4.5 ★★★★★
Based on 12 reviews
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DabbinDave
Charlottesville, US
★★★★★ 5
good durable shirts
Size: 4X-Large, Color: Black
The Carhartt K87 pocket t-shirt is a classic for a reason. The heavyweight cotton material feels durable and high quality, making it great for both work and everyday wear. It holds up well over time and doesn’t feel flimsy like cheaper t-shirts. The loose fit is one of the standout features—it gives you plenty of room to move and stays comfortable even during long days. The chest pocket is a nice touch for small items, and the overall construction feels solid with minimal twisting after washing. Comfort-wise, it starts a bit stiff but softens up after a few washes, which is pretty typical for thicker cotton shirts. It’s also available in a wide range of colors, so it’s easy to grab a few and rotate them. The main downside is the fit can run large and slightly boxy, so you might want to size down depending on how you like your shirts to fit. Some people may also find the heavyweight fabric a bit warm in hot weather. Overall, it’s a reliable, long-lasting t-shirt that delivers great value for the price and is perfect if you want something durable and simple.
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Reviewed in the United States on April 12, 2026
C
Verified Purchase
Candace Phillips
Port Orchard, US
★★★★★ 5
Great quality item!
Size: XX-Large, Color: Black
Great quality & very durable! We love any product made by Carhartt! The size is always great, they do not shrink and the neckline does not stretch out easily, which makes for a great casual wear appearance!
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Reviewed in the United States on April 21, 2026
S
Verified Purchase
Sam K
Charlottesville, US
★★★★★ 5
Big but good shirt
Size: Small, Color: Carbon Heather
Pretty big for a men's small pretty much a medium but I shrank it down with heat and it's good now still pretty big but I like it
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Reviewed in the United States on May 12, 2026
N
Verified Purchase
nabit
Omaha, US
★★★★★ 4
It’s ok
Size: XX-Large Tall, Color: Carbon Heather
The collar area felt kind of tight for him. The shirt is nice and long, but not thick.
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Reviewed in the United States on May 3, 2026
G
Verified Purchase
G
Battle Creek, US
★★★★★ 5
Carbon Carhartt
Size: XX-Large, Color: Carbon Heather
Classic Carhartt quality. Reasonably thick t shirt with a bit of stretch, but still sturdy and rugged. I put this on as soon as it arrived. I have nothing but a plethora of carhartt t's for the spring and summer. Added this color, Carbon Heather, to my collection. It looks plain cool. Almost like carbon fiber.
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Reviewed in the United States on May 15, 2026

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