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💧 Seal your system, own the cool — no leaks, just sleek performance!
The Hotop 10 Pcs Black Water Cooling Plug Fittings feature G1/4 precision threading and integrated O-ring seals for airtight, leak-resistant performance. Crafted from copper with rustproof plating, these plugs offer durable, tool-free installation with a stylish matte black finish. Ideal for professional-grade PC water cooling systems, this bulk pack ensures you have reliable, high-quality plugs for complete loop customization and maintenance.




| ASIN | B08TTRM5QH |
| Best Sellers Rank | #126 in Water Cooling Systems |
| Brand | Hotop |
| Brand Name | Hotop |
| Compatible Devices | Desktop |
| Cooling Method | Liquid |
| Customer Reviews | 4.8 out of 5 stars 293 Reviews |
| Item Highlight | Water Stop Plug Fittings for Computer Water Cooling System |
| Manufacturer | Hotop |
| Material | Copper, Rubber |
| Material Type | Copper, Rubber |
| Model | Hotop-Water Stop Plug-WS23 |
| Noise Level | 0.1 db |
| Number of Items | 10 |
| Part Number | Hotop-Water Stop Plug-WS23 |
| Unit Count | 10 Count |
M**B
These caps work ALMOST, everywhere..
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.
A**R
It is a plug
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
A**V
Great value, absolutely no issues 1+ weeks in
I’ve had two of these in my loop for over a week now, capping off two ports in my reservoir. I’ve had no leaks so far, so no complaints. They fit perfectly into the G1/4” ports
J**H
Well made
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.
A**T
Custom water loop block off fittings
If you need a cap off some Gina 1/4-in fittings in your custom water loop PC this is what you need their metal not plastic exactly what I needed to block off the extra fittings on my water block.
R**Y
1st Class quality & presentation!
COoL plugs packed in a (must save) plastic box... Very impressive (something my GF never told me, sadly). Would buy again! Thank you.
B**N
Bery good
Work great, better then the plastics one that usually come with the fittings and pumps
A**S
Overall good quality
Fittings had no imperfections, felt high quality and were great value, they also did not allow any water to leak out of the loop.
A**N
منتج ممتاز
استخدام شهر يؤدي الغرض بدون تسريب طبقة مانعة للصدأ رخيصة مقارنة بالشركات الكبرى سرعة التوصيل
Trustpilot
1 day ago
1 week ago