Piston U-Seal (E4) 3.250" x 2.812" x 0.218" - Nitroxile

Marsoni

M251S

$60.53

Get it in 3 business days with 1 day shipping. Friday, May 29

Piston U-Seal (E4) 3.250" x 2.812" x 0.218" - NitroxileProduct Details : Piston U Seal (E4) 3. 250" x 2. 812" x 0. 218" Nitroxile Part No: E40702812 4274 Product Category: Piston Seals Product Type: Piston U Seal Profile: E4 Material(s): Nitroxile Durometer: 83A Temperature Range: 10F to +250F ( 23C to +121C) Pressure Range: 250 PSI ( 17 Bar) Surface Speed: < 3 ft s (0. 9 m s) System Of Measurement: Inch Bore Diameter: 3. 250" Dimensions: 3. 250" x 2. 812" x 0. 218" Nominal I. D. (d): 2. 812" Nominal O.

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For the price, I thought this was a real air release coffee jar. The kind you can use a vacuum sealer on that really gets out all of the air. This is one of the press pump types. For most, this would be efficient, but I make espresso and need the freshest beans. I roast myself and need them to maintain their freshness and this doesn’t quite do it for me.

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Reviewed in the United States on January 7, 2025

sophie

Fort Morgan, US

★★★★★ 4

Thin glass but good container

My biggest worry with this container is that it is such thin glass. I fear if I were to hit it the wrong way or it even fell a foot it would shatter. The seal is very good though and holds my coffee beans. It is easy to open and seal. I have no issues with it and it does what it is intended for other than it being a bit thin.

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Reviewed in the United States on February 12, 2025

Misty Frogg

Fort Morgan, US

★★★★★ 5

I needed a secure container for my flour and this works perfect

I have a unique problem I have dart frogs and because I have dart frogs I have to raise flies unfortunately, the fruit flies really love flower, and I’m having a hard time getting a container that seals and keeps everything out because normally a bay leaf is good enough to keep whatever out of your flower but not not this so I got this container and it’s amazing it seals so nice and tight. You can literally pressurize it to keep your flower completely safe from silly things like fruit flies I know this is unusual, but if you’re looking for a container that really seals this one’s fantastic. I love that it’s glass. I love that you can actually pump the top to pressurize it and then you hit the other button to release the pressure. I will say it is kind of hard to pull the lid off so definitely go slow.

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Reviewed in the United States on November 2, 2024

Verified Purchase

Utarng

Draper, US

★★★★★ 5

It is heavy

Size: 58.3mm, Color: Black

Item was as described and shipped promptly. It is heavy and works well with my portafilter. I haven't had it long enough to really evaluate how helpful it is.

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Reviewed in the United States on October 31, 2025

Verified Purchase

ChristianPablos

Alexandria, US

★★★★★ 5

Muy bueno

Muy bueno

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Reviewed in the United States on November 18, 2025