DeltaMate Fittings are water cooling connectors designed for the individual components of a custom water cooling loop. As expected from Thermal Grizzly quality, the fittings are precisely machined from brass. Brass, as an alloy of copper and zinc, offers the advantage of being anodically compatible with other metals while being harder and more corrosion-resistant than copper. The sealing rings (O-rings) are made from highly elastic EPDM (ethylene propylene diene rubber), which is resistant to ozone and UV radiation. The robust design of the DeltaMate fittings allows for installation using an 8 mm hex key. The uniform outer diameter of all DeltaMate fittings ensures seamless integration of individual components. The DeltaMate Drain Valve with a G1/4-inch thread is a drain valve featuring a spring-loaded internal valve for automatic sealing and leak-free operation. An integrated 10-mm push-fit connector enables clean, controlled drainage using standard soft tubes. The modular plug-in system with optional backflow prevention allows for flexible hose configurations, while a flat brass body enables use in tight spaces. Included with the drain valve are two push-fit barb connectors, compatible with any tubing with an inner diameter of 10 mm. Machined brass G1/4" fitting with durable EPDM O-ring sealing Spring-loaded internal valve for automatic, leak-free operation Modular plug system with optional anti-reflux design for flexible loop configurations Integrated 10 mm barb for controlled drainage with standard soft tubing Low-profile brass body for durability and tight-space compatibility 8 mm hex interface for secure installation, includes protective cap