This tip can be found at Walmart and Home Depot. I have gone through 4-5 of these over the past few years. They work well for the first couple uses but quickly begin to leak which can be irritating as it causes valuable SH to spill in the grass as you soap.
Although this tip is good for adjusting between a stream and a fan tip, the stream is not able to reach as high as a typical 0 tip.
The standard pink and blue tips are common beginner tips that can be found at Lowes and online at Amazon. When I first started soft washing, I relied often on the pink tip for soaping and the blue tip for rinsing. The pink tip allows more flow than the blue tip which allows the down stream injector to active and pull chem.
One problem with the pink and blue tips is that they can struggle to reach the peaks of certain houses in some scenarios especially when using a lower gpm pressure washer.
I have washed many houses with and without using the Davis Shooter Tip. I personally recommend the shooter tips.