What are the precise diameters of the inside and outside of the ring for the 3-cup gasket?

2 1/2" outside dia and 2" inside

When do you know it is time to change the gaskets/filter?

When the coffee fails to percolate on the stove is usually when I notice, at which time I give it a little jiggle and it starts to work. After it cools down, I inspect the gasket and the gasket is black and the edges are starting to deteriorate. That's how I know.

what size is the gasket?

I have the gasket for a 6 cup bialetti...and measuring a spare, the inner diameter of gasket is 2 1/16 inches, outer diameter 2 3/4 inches. it's a Bialetti part, designed for moka express, dama, moka easy

Hi, its fits on 2 cup new brikka? Regards

Ciao, Luciano, It fits my THREE cup. Maybe send a note to the seller and ask him? You don't want to get a gasket that is the wrong size.

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Bialetti Replacement Gasket and Filter For 3 Cup Stovetop Espresso Coffee Makers

Product ID: 314096404

Details

Brand
Bialetti
Compatible devices
Coffee Maker
Material
Stainless
Number of pieces
2
Shape
Cone or Basket

☕Compatible with all 3-cup Bialetti

⚙️Precision-fit gasket set

🛡️Durable stainless steel filter

Description

☕ Upgrade your ritual with flawless espresso every morning!

PERFECT OEM FIT - Engineered to match original Bialetti specs for leak-proof brewing every time.
PREMIUM MATERIALS - Crafted from resilient white rubber and stainless steel for lasting durability.
BOOST YOUR BREW SPEED - Restores your stovetop espresso maker to like-new performance with faster extraction.
COMPLETE REPLACEMENT KIT - Includes 1 stainless steel filter plus 3 gaskets—ready to refresh your espresso maker.
TRUSTED BY COFFEE AFICIONADOS - Highly rated by thousands who refuse to compromise on authentic Italian espresso.

This Bialetti Replacement Gasket and Filter Kit is designed exclusively for 3-cup stovetop espresso makers, featuring a precision-fit white rubber gasket and a stainless steel filter. The kit includes one filter and three gaskets, ensuring a leak-free, durable, and efficient brewing experience that restores your coffee maker to peak performance.

Specifications

ASIN	B000RY7OI0
Best Sellers Rank	#35,478 in Kitchen ( See Top 100 in Kitchen ) #176 in Reusable Coffee Filters
Brand Name	Bialetti
Compatible Devices	Coffee Maker
Customer Reviews	4.6 4.6 out of 5 stars (2,640)
Item Weight	68 g
Manufacturer	Bialetti
Manufacturer Part Number	SYNCHKG011488
Material Type	Stainless Steel
Model Number	SYNCHKG011488
Number of Packs	1
Number of Pieces	2
Package Size Name	Single
Shape	Cone or Basket
UPC	696737467195
Unit Count	1 Count
coffee_filter_size	#2

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