“The standard Italian rubber group gasket take take a bit of time to loosen when first installed. The silicone gaskets are silky to the touch immediately”
“Works great! I prefer these silicone gaskets to rubber ones because the material is more durable. Make sure you know if your particular group requires the the 8mm or 8.5mm. The thickness of the gasket will determine how far the portafilter turns to lock. Because portafilters and groups will slightly differ between manufacturers or because of wear of the metal "wings" of the portafilter from a heavily used machine, the gasket thickness will matter. I was unsure off hand and was unable to find out, so I purchased both.”
“They work great, last a long time, and are easy to install. Lost one star because when they're brand new you have to be sure to lock in the portafilters very tight or it might pop out mid-shot.”
