Oh i was looking on my phone before. The retro-1800 model is a low flow sprayer head. Typically you see these in beds with drought resistant plants. These work fine but waste a little more water than drip tubing. This may be an easier way for you to lower your water out

Typically when someone says "drip irrigation" they mean tubes like this. Its the most efficient way to water the soil - there is much less wasted water. You just space the tubes as far apart as the emitters are spaced.

This tubing will work with the RCKIT. But it does not look like RCKIT includes a filter. The drip tubing gets clogged pretty easily so typically you put a filter like this inline after the valve and a flush valve that periodically flushes the drip tube of any sediment buildup. Both of thes would be placed in a small box. Sediment buildup and drip tubes clogging can be a big deal if you are using non-potable water like well water. It's not nearly as big of an issue for systems using potable water.