These FKM rubber gaskets are exactly what you need if you're working with sanitary tri-clamp fittings. The 1.5 inch size fits standard tri-clover type ferrules with pipe outer diameter of 38mm/1.5 inches.
Made from food grade FKM rubber, which is seriously durable and handles temperatures from -30°F all the way up to 400°F without breaking down or losing its seal.
Dimensions are spot on - 50.5mm outer diameter, 34mm inner hole diameter, and about 4.8mm thick. They create a perfect seal that's stable even under extreme conditions.
Comes in a pack of 5, which is great because you always seem to need spares when you're in the middle of a project. Perfect for brewing equipment, dairy processing, pharmaceutical applications - anywhere you need reliable sanitary seals.
The quality is definitely there - these aren't cheap imitations but proper replacements that perform just as well as the originals. Keep a few on hand and you'll never be stuck with a leaky connection again.