Orbit 57505W Direct Burial Waterproof Grease Tube with Sprinkler Wire Nut 25-Pack

I had never used grease caps before but I got these when I had to totally rewire my 14 station lawn irrigation system. They installed far easier than I had expected (based on some reviews I had read). They even worked well for the ground circuits where 4 to 6 wires were joined together in one cap. As others have said, finish all your wiring and completely test your system BEFORE installing the caps. You don't want to be pulling these things off and redoing them once you have installed them. The grease could get very messy.

Perfect solution for wiring Irrigation zones in box Protecting the wiring would highly recommend and purchase again!!!

Worked as described. No issues.

First of all, it works GREAT if you have no flaws or never need to take it off. Unfortunately, my old wiring broke (inside its insulation) when putting these on and I wasn't sure what the problem was, so I had to take several off to find the fault, and that got messy very quickly. The new cable turned out to use thicker wire than the original I was splicing into which was another complication. These appear to make very good water-proof seals on the wired nuts. I ended up using them on 22 gauge wire, 18 gauge wire, and a combination of the two. Tips: 1) If splicing in new cable, try to get the same gauge if possible. I couldn't find the original gauge wire and so ended up using a larger one - this made nutting the wires together a bit harder. Twisting the wires together and trimming them before adding the wire nut helped a lot. 1) If you are wiring up a sprinkler system cable that contains many wires, be sure to leave A LOT of room from the cutting the cable sheath to the end of the individual wires - I suggest about 4 inches. If you are splicing, then 4 inches on both sides. I had 2 inches and it just didn't work leading to a real mess. You need room to work the individual wires. 2) Cut about 1/2 inch of insulation off the individual wires to be nutted together and I suggest twisting them and trimming the end to be even before putting on the nut, this ended up helping a lot using different gauge wires. On the same gauge wire it didn't seem to matter as much. 3) Test the system BEFORE putting on the grease plug. This seems obvious but its easy to get ahead of yourself. 4) If you have left yourself plenty of room (by cutting 4 inches off the outer cable insulation) than putting on the grease plugs is a snap. I did not and really regretted it. The room I had to work in was tight, and I ended up unknowingly breaking an old brittle 22 gauge wire in the process. Things went much better on my second try having learned my lessons. 5) If for any reason you have to pull a grease plug out, I strong suggest you clean the mess on the wires using alcohol and throwing the old plug out, using a new one when the repair is done. I tried reusing already messy plugs and again, regretted it. It isn't worth it. You end up with a half filled grease plug and a poorly protected wire nut. 6) In the future if I end up having to redo a splice, I will cut away the old wire plug and just start fresh on fresh wire.

I use these grease caps for low voltage landscape lighting and repairing buried invisible dog fences. I've never had an issue. I like the way the grease cap snaps close further protecting the electrical connection from the elements. I highly recommend these caps.

Orbit WaterMaster Underground 57505W Grease Cap With Orange Nut, 25-Pack I was looking for a way to waterproof the electrical connections to my sprinklers and came across this product. I have had problems with the sprinkler valves not working as the wiring into the sprinklers had become corroded. The product arrived in a sealed bag. The grease caps were a lot bigger than I thought they would be. See picture. The caps themselves are easy to use and allowed me to fit in 3 different wires in one sealed cap. I used a little bit bigger wire (16 gauge) and put each connection to the sprinkler in a sealed cap. The common wire (or white wire) is shared with each sprinkler and goes from valve to valve. I also used the grease caps for each valve to the distribution box. I installed this product two months ago and haven’t had a short out ever since. I would recommend this product to anyone looking to ensure there sprinkler system lasts for years to come. Let me know if you have any questions about this product or my review. If you found my review helpful, please click the yes button below.

If your working in a box or area that gets water accumulation, these things work so much better than the standard greased wire nut. Twist the wires in a greased nut or standard nut as normal and sink them down inside the way grease in the tube. Seal the tube and your done. Easy peasy and water tight for a long time.

These don’t close perfectly but it doesn’t matter too much. These will protect your wire nut and wire for many many years.

Very good - works well.

Good waterproof electrical connection

Product works as expected

These worked as intended. A bit greasy to install, but thats expected. I would have given it 5 stars, but they only work for a two wire application so joining 3 wires is possible. but the tops wont close.

Caps don’t stay closed and simply will not accommodate larger wires or 3 wires (for daisy chaining)