Funnel Alphacool 17705 — brass/nickel rubber, 6 cm diameter

Alphacool 17705 is a compact filling funnel designed for computer cooling and liquid-handling tasks. Constructed from brass with nickel plating and fitted with a rubber sealing component, the funnel has a 6 cm outer diameter and a lightweight build of approximately 18 g. The single-piece item is intended for precise filling of radiators, reservoirs and closed-loop watercooling systems and incorporates a G1/4" threaded connection for secure attachment.

Advantages

The brass body with nickel plating offers dimensional stability and a corrosion-resistant surface where metal contact is required. A rubber sealing component ensures a snug fit and helps prevent leaks or spills during filling operations. The G1/4" thread prevents the funnel from slipping when attached to standard watercooling ports, and the compact form factor facilitates access to confined spaces around radiators and reservoirs.

Suitable for

• Filling PC watercooling reservoirs
• Top-up and maintenance of closed-loop liquid cooling systems
• Refilling radiators and coolant containers with limited access points
• Precision liquid transfer in small or tight computer enclosures

Key specifications

• Material: brass with nickel plating and rubber sealing component
• Connection: G1/4" threaded fitting
• Outer diameter: 6 cm
• Weight: approximately 18 g
• Quantity: single piece

How to use

Attach the funnel to a compatible G1/4" port on the reservoir, fill tube or adapter by threading it in until the rubber seal engages to reduce leakage. Hold the funnel steady while slowly pouring coolant to avoid air entrapment and overfilling. After filling, unthread the funnel carefully to allow any remaining fluid to drain back into the reservoir or container, then clean and dry before storage.

Usage recommendations

Use compatible, manufacturer-recommended coolant and work on a level surface. Inspect the rubber sealing component periodically for wear or damage and replace the funnel if the seal no longer forms a reliable fit. Avoid exposing the funnel to strong acids or solvents that can degrade the rubber or plating.