The Keurig Single K-Cup Solo Reusable Coffee Filter Pods are the easiest way to brew any ground coffee in your Keurig coffee maker. Works with Keurig coffee brewers models: K200, K300, K350, K360, K400, K450, K460, K500, K550, K560, K31, K40, K44, K45, K50, K60, K66, K70, K77, K80 ...The Keurig Single K-Cup Solo Reusable Coffee Filter Pods are the easiest way to brew any ground coffee in your Keurig coffee maker. Works with Keurig coffee brewers models: K200, K300, K350, K360, K400, K450, K460, K500, K550, K560, K31, K40, K44, K45, K50, K60, K66, K70, K77, K80, K100, B31, B40, B44, B50, B60, B66, B70, B77, B100, B140, B200 These filters work for Keurig 2.0 and do not need any clip or stickers or hacks! Fully compatible! Can take up to 12 grams of coffee No need to remove or swap out the filter holder, built-in permanent stainless steel micro-mesh filter2 PACK Refillable Reusable KEURIG K-Cup Coffee Filter Pods for Keurig 2.0 & 1.0 Hot My K-CUP Universal fit