Hotop 10 Pcs Black G 1/4 PC Water Cooling Plug Fittings with O- Ring Stop Fitting for Computer Water Cooling System

These are very nice. The head is somewhat thick, enough to screw on with your fingers so be aware of that. Makes them really easy to install. Threads went in perfectly and had 0 fitment issues on all 10. Great value

My Pic is of the top of my EK reservoir. You'll notice that I have the stock nickel plugs on top and the front side. If you look closely, you'll see that the top plugs are slightly recessed into the top itself where the front plugs are not. In those recessed ports which only exist on the top of EK reservoirs, are just about the only place these new black plugs won't fit. The head on them are to wide to go down in the recessed cutout so they will not seal. Other than that, they work great for my EK GPU waterblock and elsewhere in the loop. I was really hoping to get rid of all of the nickel colored stock EK plugs. I suppose I could add an extra o-ring or two to the top plugs in an effort to make contact with the recessed area better. This of course is not the fault of the plug design. It's just EK being EK and making custom stuff so you buy from them for accessories. These are actually really good quality of the price. They have a nice smooth black finish and are pretty beefy. They don't feel cheap at all.

Liked the metal material and black color. Looks rugged and adds the muscle car vibe to my gaming PC that I was looking for. Price point was fair also.

COoL plugs packed in a (must save) plastic box... Very impressive (something my GF never told me, sadly). Would buy again! Thank you.

Work great, better then the plastics one that usually come with the fittings and pumps

Fittings had no imperfections, felt high quality and were great value, they also did not allow any water to leak out of the loop.

Got these because I somehow never have enough water block seals. I do sell my used blocks on occasion, and I usually include these once I sell them. They only need to last long enough to get to the customer, and they work fine for that. The fitment is good, seal is good. Price is great for how many you get. Quality is pretty good, I have no complaints.

I only needed a few but it's nice to have extras for later down the road. It seals my reservoir even upside down.