For the price, you can't beat this deck jet. It comes with complete, easy-to-follow directions. Accessories include four different colored caps and two styles of nozzle: single or double jet. The water stream that this deck jet produces is not as "refined" as the much more expensive Pentair jets, which is hard to explain unless you have seen them both. Basically, this jet produces a stream you might see on a fountain while other jets produce a perfectly cyclindrical stream that does not break until it hits the pool water. Still, this deck jet produces a fine fountain effect at a very nice price point.