I have herd of other items that they only sell the consumables that fit that tool. Such as a mig welder that uses a wire size only HF sells.
As far as tring out a new tool it worked for me also. The first paint gun I bought for maybe $30 was a suction feed with the wrong sized tip for what I was doing. I learned what I needed with the $30 mistake. Still between the 2 guns I came out cheaper than one at another box store (that was also made in China).
