Thermal Grizzly DeltaMate Fitting ST13 Matt Nickel – metal fitting for DeltaMate water block

Thermal Grizzly DeltaMate Fitting ST13 Matt Nickel is a metal replacement fitting engineered for the DeltaMate water block. The ST13-sized fitting provides a matt nickel surface finish that improves corrosion resistance and gives a durable contact surface for tubing and adapters. Designed for liquid-cooling configurations in desktop PCs, the fitting helps manage coolant flow and creates a reliable sealed connection within custom loops and component-specific cooling assemblies.

Advantages

The matt nickel plating offers enhanced resistance to oxidation and wear compared with untreated metal, while the precision-machined body ensures a consistent fit with the DeltaMate water block. The metal construction provides mechanical stability under clamp pressure and temperature variations, and the ST13 size is compatible with matching tubing and adapter standards used in PC water-cooling systems. The fitting’s geometry is designed to minimise turbulence and support steady coolant circulation.

Suitable for

• Replacing a worn or damaged fitting on the DeltaMate water block
• Custom PC liquid-cooling loops requiring ST13-size fittings
• Applying a corrosion-resistant metal fitting where long-term reliability is needed
• System builds that prioritise precise coolant routing and secure sealing

Key specifications

• Material: metal with matt nickel finish
• Fitting size: ST13 (compatible with ST13 tubing/adapters)
• Surface treatment: matt nickel plating for improved corrosion resistance
• Intended use: water-cooling fitting for DeltaMate water block

How to use

Install the fitting by first draining and isolating the loop according to your system maintenance procedure. Remove the existing fitting from the DeltaMate water block and inspect the block port and surrounding seals. Thread or press the replacement ST13 fitting into the port until seated, ensuring correct orientation and full engagement. Reapply appropriate tubing clamps or compression rings and refill the loop, then perform a leak test at operational pressure and temperature before returning the system to normal use.

Recommendations

Use compatible ST13 tubing or adapter components and verify sealing surfaces are clean and undamaged. During installation and maintenance, follow standard safety procedures for handling coolant and powering down PC components. Periodically inspect fittings and joints for signs of corrosion or leaks and replace components as needed to maintain loop integrity.