Rain Bird 1800CAPS Spray Head Cap for 1800 Series Sprinklers

We extended out our deck, which now hangs over one of our underground sprinklers heads. This cap closes it off so that it won’t spray under the deck. The cap was delivered in just one day. It is made well, fits and seals well, and was easy to work with. it was a product that was not carried by either Ace Hardware, nor Lowe’s. We were glad to see it on Amazon. Good product.

The first time I put cap on it popped off with the water pressure. Removed the cap and the sprinkler part it screwed onto. Turns out because of some dirt on the pipe threads I had not screwed it down all the way like it felt I had done. Two things...I wiped down all the thread areas both on the cap and the sprinkler pipe it screwed into. I had pushed the gasket tight down into the cap. I brought it back up so that it circled where it should have, but not pushed down tight into the cap. Screwed it onto the pipe tightly and now it stayed and worked well with no water escaping.

I live in a managed amenity apartment building. After 6 service requests, they could not fix a malfunctioning Rain Bird 1800 series sprinkler head which was spraying well water all over vehicles and pedestrians walking on the sidewalk. It wasn't watering the grass at all. When they actually attempted to fix the sprinkler (half of the requests were simply deleted without action), I think they were just swapping out parts, even thought it probably would've just been cheaper to replace it with a new one (but they are the experts here, multiple attempts to repair a single sprinkler head must've been less expensive than installing a new one). After giving the management company a final warning, I ordered this cap to finally put this sprinkler head out of its misery for good without costing me much time or money. Installation was easy by following the included installation instructions. I dug around the sprinkler head and unscrewed the top, removing the internal components. It turned out that the stem of the malfunctioning sprinkler was cracked so it wasn't going to be fixed easily - I don't know what they were doing to "fix" the malfunctioning sprinkler head. Anyhow, I cleaned the threads to remove any dirt, verified the O-ring was installed, and carefully screwed on the cap. I verified no leaks after the system ran in the evening. The problem is now fixed at minimal expense (which is especially important since they won't reimburse me for the cap) and I don't have to worry about it again. Luckily, the grass in the affected area is already watered by other malfunctioning or incorrectly adjusted sprinklers in the area. It's great not having to worry about well water getting on my car anymore!

I used these caps to temporarily shut-off a couple of sprinklers heads that are no longer needed due to the lawn re-design. If needed, I can re-activate them again. The quality is good and the seals are tight, with no leaks. Although intended for Rainbird series 1800 heads, these caps have also fitted a couple of Orbit heads I also head. Out of interest, I also tried them on a Weathertech head, and they don't fit those.There are no issues with these caps other than hight price. For the four dollars charged for each, one could by a whole new sprinkler head itself, actually.

Very solid heavy plastic that works perfectly. You do need to make sure that you seat the o-ring properly in the cap before screwing it on. The o-ring was loose in the package but was easy to press in place and stays where it is needed to screw on the cap.

Great product fits perfectly with rain bird no leaks

There must be more than one size of these. I removed a rotary rainbird head and this was too small to cap it.

Fit my Rain Bird sprinkler head perfectly and capped off an unneeded sprinkler. Zero issues and easy to install.