Thermaltake introduces the Pacific Series Barb fittings for the ultimate in custom PC water cooling configurations. Finished in chrome-plated copper, the barb fitting includes a quality O-ring with side printed Tt logo. Choose from: 1/4", 3/8", and 1/2" ID barb size, Thermaltake fittings provide a complete solution for DIY enthusiasts and PC builders by giving users ideal mounting, fitting and flow."Tt LCS Certified" is the hallmark that ensures first-class performance from the best features and fitment. A certification exclusive to Thermaltake, it sets the benchmark for all true LCS chassis and is applied only to products that meet our stringent design standards for delivering what hardcore enthusiasts demand. The Tt LCS certification is a way for Thermaltake to designate to all power users the chassis which have been tested for best compatibility with extreme liquid cooling configurations.High-flow and Leak-free Design Made in Taiwan, the fittings allow proper connection to G1/2" thread, securing properly to any cooling components. The fittings are available in chrome and black finishes, include one preinstalled O-ring. Use flexible tubing for all your water cooling needs. Remarkable Expansion Thermaltake offers a full line of Pacific Series components for enthusiasts to build up aesthetically-superior water cooling systems by incorporating externally-modular upgrades for their chassis.