Alphacool Apex Grip Prolunga 20mm G1/4 filettatura esterna su filettatura interna cromato (14898)

Double O-ring sealed brass extension with chrome finish – 20mm reach for tight G1/4" ports.

Overview

The Alphacool Apex Grip Extension 20mm AG/IG G1/4 chrome is a precision-machined brass fitting engineered to add 20mm of clearance between G1/4" threaded components in custom water cooling loops. Its male-to-female configuration (AG/IG) screws directly into any standard G1/4" female port and provides a female G1/4" port on the opposite end, allowing radiators, reservoirs, CPU blocks, or GPU blocks to be spaced further apart. This is particularly useful when fittings collide with nearby components or when tubing runs require a straighter path. The extension is part of the Alphacool Apex Grip series, known for its knurled gripping surface that simplifies hand-tightening even in cramped spaces.

What stands out

• 20mm extension length – resolves clearance issues without bulky adapters.
• Double EPDM O-ring seal – redundant leak protection for long-term reliability.
• Chrome-plated brass body – excellent corrosion resistance and a mirror-like finish.
• Knurled grip pattern – secure finger-tightening; no tools required in most builds.
• Fixed (non-rotary) design – maintains exact orientation once installed.

Technical details

• Thread: G1/4" male to G1/4" female (AG/IG).
• Extension length: 20 mm.
• Total fitting length: 28 mm.
• Outer diameter: 23 mm.
• Material: Brass with chrome plating.
• Seal: 2x EPDM O-rings.
• Compatibility: All standard PC water cooling components with G1/4" ports.
• Installation: Hand-tighten; use a wrench on the knurled section if needed.
• Corrosion resistance: High.
• Colour: Chrome (silver).

Our verdict

A compact, robust extension that solves tight-clearance problems with a leak-proof double seal and premium chrome finish. The knurled grip makes installation straightforward, and the fixed length ensures consistent spacing. Ideal for builders who need a few extra millimetres without compromising flow or aesthetics.