Optimus
Optimus Hardline Compression Fitting Satin Black / 12mm / 6 Pack with Wrench
Best premium hardline fittings for custom PC water cooling enthusiasts.
Elevate your PC water cooling with the Optimus Hardline Compression Fitting in Satin Black. Designed for 12mm hard tubing, this 6-pack includes a wrench for easy installation. Optimus fittings feature a revolutionary gasket design for superior clamping force and are precision-machined for exceptional thread accuracy. The Pro-XE Electroless Nickel plating ensures excellent corrosion resistance, even with plain distilled water, while plasticizer-free EPDM O-rings prevent contamination. Backed by a 10-year warranty, these fittings offer unparalleled reliability and performance for your custom loop.
$69.95
Owner Satisfaction
4.5
/ 5
Category Rank
866
/ 3605
#866 in Computer System Cooling Parts
Price vs Category Average
-54%
Below average
Tubing Size
12
/ mm Hardline
Who it's for
- System assemblers seeking a convenient, all-in-one installation package
- Enthusiasts prioritizing long-term reliability and leak-proof security
- Builders aiming for a sleek, professional aesthetic
Who should skip it
- Budget-conscious builders managing a strict project cost
- Planners needing immediate availability for time-sensitive builds
- Users preferring industry-standard 14mm or 16mm tubing options
Performance breakdown
Build Precision
Machining tolerances down to 0.0002 inches set a new industry benchmark.
Installation Ease
Included custom wrench makes securing fittings in tight spaces effortless.
Seal Integrity
Advanced gasket design provides superior clamping force for leak-free loops.
Corrosion Resistance
Pro-XE plating ensures long-term durability even with simple distilled water.
Material Quality
Plasticizer-free EPDM O-rings eliminate common loop contamination issues.
Long-term Reliability
A decade-long warranty reflects extreme confidence in component longevity.
Key Specs
Tubing Size
12mm Hardline
Quantity
6 Pack with Wrench
Thread Spec
True BSPP-G 1/4" (ISO-228)
Material/Plating
Pro-XE Electroless Nickel
O-Rings
Plasticizer-free EPDM
Gasket Thickness
1/8" (3.2mm)
Finish
Satin Black
Thread Accuracy
Down to 0.0002"
Features
- Revolutionary gasket design for superior clamping
- Ultra-precision machining exceeds standards
- Plasticizer-free O-rings prevent contamination
- Corrosion-resistant Pro-XE plating
- Includes installation wrench
- Designed for 12mm hardline tubing
- 10-year warranty for peace of mind
What customers say
Enthusiasts highly regard Optimus Hardline Compression Fittings for their exceptional build quality and striking satin black finish. The precision engineering, featuring smooth threading and a robust double O-ring design, provides supreme confidence in leak prevention for high-end water-cooling systems. Users appreciate the included specialized wrench, which simplifies installation and protects the premium look. While the cost is notably higher than mainstream options, the consensus is that serious builders find these fittings a worthwhile investment. The superior reliability, ease of use, and visual impact deliver high overall satisfaction for those prioritizing top-tier components.
Know before you buy
Yes, these fittings are designed specifically for 12mm outer diameter hardline tubing, regardless of whether you are using acrylic or PETG.
No, each 6-pack includes a dedicated installation wrench designed to fit the fittings perfectly, ensuring you can tighten them securely without damaging the finish.
Yes. The Pro-XE Electroless Nickel plating provides excellent corrosion resistance, making these fittings safe for use with plain distilled water or standard coolant mixtures.
Plasticizer-free O-rings prevent the breakdown of materials that can cause cloudy buildup or gunk in your water cooling loop, ensuring your coolant remains clean and your blocks stay clear.
Yes, these fittings use the industry-standard G1/4 thread specification, making them compatible with virtually all standard PC water cooling components.
Optimus uses a specialized gasket design that provides superior clamping force on the tubing, which significantly reduces the risk of leaks compared to traditional O-ring compression methods.
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$70