These are B-2 valves for shallow bowl fillers, Meyer part # HH7810. These valves are complete including cage (RR475), spring (HH94), stem (581RR), collar (132-6399), viton o-ring (100-3482), and rubber valve seat (HH7723.) Charging valves and snift blocks complete are also available. These parts are used and came out of a working filler that was scrapped due to obsolete drive parts.