Will this work for a stainless steel espresso maker (Primula)?

It leaked when I used it in my Bialetti espresso pot. I ended up buying the Bialetti brand and I had no leaks.

will this work on a generic 6 cup moka pot I bought in the 70's? No name anywhere on it.

It’s worth a try; it seems the shape and size would be fairly close since it sounds like yours is a similar design. Double-check the specifications and measure against your Moka pot.

How do you know when replace them?

You replace the gaskets when they get hard, my pot was purchased in 1965 and ihave replaced the gasket 5 times. As for the filter, not yet. But given the age of my pot, its probably good to have

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Univen 2.5" (64mm) Espresso Filter and Gasket Seals Compatible with Bialetti 6 Cup Aluminum Espresso Makers

Univen 2.5" (64mm) Espresso Filter and Gasket Seals Compatible with Bialetti 6 Cup Aluminum Espresso Makers

Product ID: 181016886

Details

Brand
Univen
Compatible Devices
Coffee Maker
Material
Aluminum
Number of Pieces
1
Shape
Disk

⚙️Precision 2.5" (64mm) filter plate

🛡️3 durable EPDM gasket seals

🇺🇸Made in USA food-safe materials

¥2615

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

☕ Upgrade your ritual with precision-crafted espresso essentials!

COMPLETE REPLACEMENT KIT - Includes one robust aluminum filter plate plus three long-lasting gasket seals for hassle-free maintenance.
FOOD SAFE AMERICAN MADE - Crafted from EPDM rubber in the USA, guaranteeing safety and premium durability you can trust.
FAMILY OWNED QUALITY ASSURANCE - Backed by Univen’s legacy of craftsmanship—join thousands of espresso aficionados upgrading their brew.
PRECISION ENGINEERED DIMENSIONS - Exact 2.5" filter diameter and gasket sizing ensure leak-proof, consistent pressure brewing.
TAILORED FIT FOR BIALETTI 6 CUP - Engineered exclusively for Moka Express, Timer, Dama & Break models—no guesswork, just perfect espresso every time.

The Univen 2.5" (64mm) Espresso Filter and Gasket Seals set is a precision replacement kit designed exclusively for Bialetti 6-cup aluminum espresso makers. It includes one durable aluminum filter plate and three food-safe EPDM rubber gaskets made in the USA, ensuring a perfect fit and leak-proof brewing. Trusted by espresso enthusiasts, this family-owned American brand delivers quality and reliability for a flawless stovetop coffee experience.

Specifications

ASIN	B0846RSNKJ
Best Sellers Rank	#193,232 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #239 in Espresso Machine Replacement Parts
Brand Name	Univen
Compatible Devices	Coffee Maker
Customer Reviews	4.4 4.4 out of 5 stars (550)
Material Type	Aluminum
Number of Packs	1
Number of Pieces	1
Shape	Disk
UPC	744539900133
Unit Count	1 Count
coffee_filter_size	#4

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¥2615

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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