This is a package of 2 #2 Stenner Versilon replacement pump tube assemblies with duckbills. Two replacement tubes, standard 1/4 inch ferrules and duckbills included.
The first time the pump tube is replaced is a fair indication of the approximate life of the tube in that particular application. Be sure to verify that the tube replacement was due to wear and not an outside contributing factor that could shorten the tube’s life.