K-Rain Fully Adjustable Nozzles come in 3-packs for varying coverage sizes. Green nozzles offer a small radius (13'-15'), blue is medium (16'-20') and red is large (26'-30'). All three variants are fully adjustable from 80-360 degrees of coverage. They also use up to 30% less water and may be eligible for conservation rebates from your local water utility. These replacement nozzles are sold by Rachio, ship from K-Rain. Spray bodies not included.