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Description
Whatman 5230-200 Qualitative Filter Paper, Circle, Crepe Surface, Very Fast Speed, Grade 230, 20cm Diameter (Pack of 50)230 20CM 50 PK A general qualitative filter with creped surface. High filtration speed and high loading capacity. Widely used in industrial laboratories and students laboratories for routine filtration. Retains coarse particles High speed and loading capacity Strong, thick filter with crped surface The filter is wet strengthened with a small amount of chemically stable resin to extend the life of the filter and improve handling. Normal qualitative
230 20CM 50/PKA general qualitative filter with creped surface. High filtration speed and high loading capacity. Widely used in industrial laboratories and students laboratories for routine filtration. Retains coarse particles High speed and loading capacity Strong, thick filter with crêped surface The filter is wet-strengthened with a small amount of chemically stable resin to extend the life of the filter and improve handling. Normal qualitative applications will not introduce any significant impurities into the filtrate. However it is not recommended for Kjeldahl nitrogen analysis. Reeve Angel products are designed for routine, repetitive applications for which an inexpensive product is acceptable, such as qualitative analysis. Reeve Angel products deliver as promised, every time,
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4.4 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Great quartz Datejust alternative!
Color: Silver/Black/Gold, Color: Silver/Black/Gold
I was looking for a cheap quartz Datejust alternative and many online reviews suggested this watch. I originally wanted the black and silver version but as prime only had the smoky gray and Gilt indices I went with that, in case it didn't meet expectations and needed an easy return. I needn't have worried. This watch is great!
The smoky gray sunburst dial is beautiful (as good as my Aqua Terra), and matches well with the Gilt applied indices and hands and white printing (words and minute ring on border); the Gilt details give it the vintage heritage look that's popular now. It's also very easy to read (as opposed to my silver Omega quartz) and date only (which oddly makes it seem pricier). Lume is fair and present on the hands alone, but better than my Tag Heuer link. The folded bracelet is a little stiff but easy to size (google how to size a folded bracelet and this was about the easiest I've done), good quality and very comfortable. it also has 4 microadjust positions on the clasp. The movenent also hacks.
On the wrist, it looks very similar to the datejust but without the heft and probably better sized at 39mm (with 20mm band). The smaller sizing and price also make it a nice alternative to the Tissot gentleman quartz. And the Casio brand makes it probably one of the cooler datejust homages, as its the brand that both hipsters and billionaires wear (per style and value).
Downsides are the plated case (not full stainless), folded bracelet (though to be fair Rolex used folded bracelets originally as well) and snap on back, but at $30 can you really complain? And I needn't worry if I accidentally bash it against a doorsill. I'm wearing it already!
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Reviewed in the United States on October 8, 2020
★★★★★ 4
Great quality/ customer support
Color: Silver/Black/Gold
I had to order a replacement because the first box was damaged and had been previously opened. Thankfully it’s was super easy and fast to do, i got the new one and is amazing, its chic and classic. It’s the perfect size for small writs!
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Reviewed in the United States on February 18, 2026
★★★★★ 5
Serves the purpose
Color: Silver/Black/Gold
Looks very nice for an inexpensive watch. And keeps time.
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Reviewed in the United States on February 1, 2026
★★★★★ 5
Me encantó
Color: Silver/Black/Gold
Se ve elegante, el precio está bien para cómo se ve y se siente, y es versátil a la hora de usar con cualquier ropa. Esta serie de casio, para mí, es bastante calidad precio
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Reviewed in the United States on April 9, 2026
★★★★★ 3
Watch arrived running
Color: Silver/Black/Gold
Watch arrived running God knows for how long. Otherwise its a nice looking piece
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Reviewed in the United States on December 30, 2025