Kap-It Risers allow anyone to raise a sprinkler head from the top instead of from the bottom by extending the stem of a standard riser. The new snap-on top protects the stem extension while leaving all of the manufacturer's original parts completely intact. Kap-It Risers are designed to still allow regular access to the head itself by maintaining the ability to unscrew the top of the canister with the Kap-It, even when multiple are stacked. Sold by Rachio, ships separately from Kap-It.