For all Filtered Corncob Pipes, e.g. for Apple Bent (All Bits can be exchanged with each other bit in its category filtered or unfiltered.)
Forever Stem (For Filtered MM Cobs) - Vermont Freehand
Boone - Vermont Freehand
Acrylic Filtered Stems For M.M.'s :: General Pipe Smoking
Karl Erik Freehand Pipes
Original Missouri Meerschaum Co. Corncob - GERMANUS
Acrylic Bit Archives
Best sales - GERMANUS
Zenon Hardwood Pipe
2 Black Bent Filter Bit Replacement Stem Missouri Meerschaum Corncob Pipe : Health & Household