This Kit includes a IMS precision group screen and a Caffewerks silicone gasket. The Caffewerks red silicone group gaskets (seals) fit La Marzocco, Slayer and espresso machines. These hold up very well in heated brew groups and remain soft and leak free longer than rubber. The softer silicone makes engaging the portafilter easier thus less effort and strain on your wrists. Designated a 6mm. Measures at 6.3mm finished. Portafilter lands at 6 O'clock on newish gear. Upgrade your espresso group gasket to the feel of silicone. Food Grade Silicone is odorless and tasteless Durable, and easier to install and remove than rubber gasket 72mm OD x 55mm ID x 6.35mm Thick Fits La Marzocco, Slayer Not sure which size or part you need? All Espresso Machine Parts are non-returnable. If you aren't sure what part you need please send us a message in the contact box below and we will help get you set up for success! The LM Style IMS brand 200 Micron Shower Screen - MA 200 IM The integrated 200 Micron laser etched membrane creates the best dispersion pattern over your coffee while reducing the build up of coffee on the back of the screen. This one piece design provides solid performance. FEATURES: Middle hole 7mm INTEGRATED MEMBRANE: The membrane is created directly within the body of the shower; it therefore does not require any blocking. SUPPORT DISC PERFORATION: Perforations: Ø 3 mm, 98 holes | Distribution: Circular COMPATIBILITY: Carimali, La Marzocco, Slayer, Synesso