Replacement valve for Nilfisk P20 vacuum cleaner hose

This is a replacement soft valve for Nilfisk P20 vacuum cleaner hose. At times these can fall off and original replacement parts do not seem to be available. This valve is important to ensure a good seal, so it is important that the inside is as smooth as possible. To ensure durability, this part should be printed solid. To get the two flaps to fit into their slots, they may need to be sharpened a bit with a hobby knife. Note that the part is not symmetrical, the longer side must lie against the soft holes. This valve can also fit other types of vacuum cleaner hoses with a little fine tuning.