10 Pack M20 20mm IP68 Waterproof Black Cable Glands, Suitable for 6mm - 12mm Cables, Plastic Nylon Compression Glands Connectors with Locknut and Washer - AVARTEK

Nice and easy to use and install. Both the plastic and O-ring seem of good quality, and like they will last outdoors for quite a while.I've used a few of these to run some cables in and out of a shed, 6 months on and the seals are still holding with no further adjustment needed.My 9nly complaint is that the flat washer that goes on the back of the gromit could be a bit more sturdy. However, it can take a surprising amount of force for its size.Overall a great product. Does the job excellently, at a reasonable price. Would highly recommend.

I ordered these to help seal some cable into an external socket. They are perfect, they fit around the cable exactly as they should. They are strong and robust, so easy to instal. They protect the waterproofing quality of the external box, great value for money as a result.

I'm not sure how to test these, if they don't work I could electrically kill myself, but they look good, seem to work, easy to fit, but are they waterproof.

Good, well priced product and fast delivery.

Reliable source for good quality products

Does exactly what it is designed to do

I've used these indoors and outdoors on a range of junction boxes. They're good to clamp cables of different sizes and form a good watertight seal. Good value.

Does the job as specified, time will tell to see if the seal’s work ok!