2Pcs IP68 Waterproof Electrical Junction Box Outdoor Underground Wire Connector Junction Boxes for 2 or 3 Pin Cables Range for 0.23-0.33 Inch(5.8-8.3MM)

I was surprised how easy it was to use

Fountain is up and running again. Works great.

Nice and strong

Looks perfect for my needs however, while they do send you TWO connectors only one of each size of cable seal is in each connector. So in my case, I am splicing two smaller cables, I needed to take the smallest seal from the other connector and combine it with the other one in the other connector, now can join two of the same sized cables but can only use the two-connector kit for one splice.

Kit comes with 2 identical devices, equipped with 2 of the smaller seals and 2 of the larger seals. Used one device and the 2 larger seals to splice in a new spa light, after light socket in old light was irredeemably damaged. Loctited all wire screws. Slathered on clear silicone sealant, inside and out. Wrapped outside of device threaded closure nuts with electrical tape. Threw away one device and the 2 smaller seals. New spa light works fine.

For my yard fountain, took several attempts to succeed. Round 1) GFCI tripped within about 20 minutes. Believe that was because too much of the outer insulation was stripped, so the compression gasket could not compress enough to make a good seal.Round 2) after shortening the stripping of the main insulation to about one inch, re-tried and ran for about 8 hours before tripping. Note, it's one inch plus whatever amount you strip to the copper. See photos.Round 3) Dried out the connector then reconnected, and this time tightened the connector with pliers and a wrench (before was hand-tightened). I could see much more compression of that internal red gasket. As another precaution, I've tied the connector so that it is close to the surface level of the water. So far has run for 4 days without tripping.Fingers crossed, I'll report back if Round 3 fails. Other important notes: This is not an easy plug-in-out connector. Rather, disconnection requires screwing some tiny Phillip head screws. Further, working with stranded cable also adds to the challenge, as each individual connector must be inserted into a tiny hole (6 times). Also, for round 3 added plenty of slack in the cord to the fountain, to make it easier to access those tiny screws. Finally, the two connectors included the red compression gaskets only, which are the smaller ones. I see other similar items that offer an even smaller gasket than the red.... I might opt for one of those if round 3 eventually fails.

The set I received had stripped screw threads. Others have reported similar experiences. I do not require an "under water-safe" product. Just something that will repel ordinary rain and moisture. Will probably use wire nuts and electrical tape to splice an outdoor electrical line.

Although the product looks as if it will be watertight and do the job of an underwater electrical connector, I was a bit nervous and so consequently decided to fill each end with a silicon adhesive after doing the joining of the 2 ends of the electrical wire.I am now a happy customer