Alphacool Apex Grip HardTube 16mm G1/4 Chrome Compression Fitting Set, 6-Pack 14930

Leak-free connections are the foundation of any reliable water cooling loop, yet hard tubing builds often struggle with fittings that crack acrylic or slip under pressure. The Alphacool Apex Grip HardTube 16mm G1/4 chrome set solves this with precision-machined brass compression fittings that lock 16 mm OD tubes firmly in place while maintaining a clean, high-flow path.

Who is it for

This 6-pack is aimed at PC enthusiasts and custom loop builders working with 16 mm outer diameter hard tubing—acrylic, PETG, or metal. Whether you are planning a new rigid-tube loop or upgrading an existing one, these chrome-plated fittings deliver both durability and a mirror-like finish that complements any build theme.

Main features

• Secure compression grip for 16 mm OD hard tubes
• Standard G1/4" thread fits most water blocks, radiators, and reservoirs
• Solid brass construction with chrome plating for corrosion resistance
• NBR O-rings ensure a leak-proof seal without overtightening
• High-flow internal design minimizes restriction
• Set includes 6 fittings for multiple connections

Specifications

• Fitting type: Hard tube compression
• Compatible tube outer diameter: 16 mm
• Thread: G1/4"
• Material: Brass, chrome plated
• Seal material: NBR O-rings
• Total height: 23 mm
• Outer diameter: 23 mm
• Thread length: 5 mm
• Color: Silver (chrome)
• Quantity: 6 fittings

Tips

Chamfer the tube ends and wet the O-rings with a drop of coolant before inserting the tube. Hand-tighten the compression collar until snug—do not use tools, as overtightening can crack acrylic tubing. For PETG, ensure coolant temperatures stay below 40°C to prevent deformation.