If you're working with sanitary piping systems, these DERNORD FKM gaskets are exactly what you need! This two-pack of 1.5-inch tri-clamp gaskets comes with stainless steel screens and they're built to handle some seriously tough conditions. The FKM material (that's fluoroelastomer for those who want the technical term) is food-grade safe and can handle temperatures from -15°F all the way up to 400°F. That's a pretty impressive range! These gaskets are highly resistant to all kinds of challenging substances - we're talking acids, chemicals, petroleum products, oils, greases, and halogenated hydrocarbons. The 150 mesh stainless screen is perfect for filtration applications where you need to keep particles out of your system. The dimensions are spot on for standard 1.5-inch tri-clover or tri-clamp fittings - 50.5mm outer diameter and about 4.8mm thickness. What I really appreciate about these is how they maintain stable isolation performance even under extreme conditions. They create a reliable seal that won't let you down, which is so important in sanitary applications where contamination is a real concern. Whether you're in food processing, pharmaceutical manufacturing, brewing, or any industry that requires sanitary fittings, having quality gaskets on hand is essential. These are durable, chemical-resistant, and exactly what you'd expect from a professional-grade gasket. Keep a couple of these in your toolkit - you'll be glad you have them when you need to replace a worn-out gasket or set up new connections in your system.