That is not technically true. I just ordered this kit. I also ordered the restrictor based on this question and comment. I just received product and sure enough the restrictor is already inserted into house. The bag label in which the hose came in even says right on bag ( heater hose w/restrictor). Question is, where is the knowledge gap? Or is what came in the hose kit something different? Both are solid pieces - no complaints there. But the communication is confusing.