the EKWB compression fittings are exceptional FOR rigid tubing builds. As a result of my tests, I determined that the fitting provided superb grip on the tubing ensuring a tight seal .Additionally, the overall aesthetic of the fittings was top-notch, contributing to a beautiful finished product. The only downside of this product is the price point, which may not be suitable for those on a budget. Overall, these fittings are worth the investment for PC enthusiasts seeking the best in both form anSee full review