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Chrome G1/4 inch bulkhead fitting, short brass body, 21mm mount hole

Alphacool

Alphacool G1/4" Bulkhead Connector Short Chrome 17423

SKU CH-MZHF-ENVHM

A chrome-plated brass bulkhead fitting with G1/4" threads for routing soft tubing through a 21 mm panel hole

  • ColorChrome
  • FeaturesThis bulkhead connector is perfect for applications such as

Color Chrome

  • G1/4" thread fits standard water-cooling fittings
  • 21 mm mounting hole suits common panel cut-outs
  • Chrome-plated brass resists peeling and corrosion
  • Works with soft PVC, silicone or neoprene tubing
  • Short body saves space in tight enclosures

G1/4" Chrome Bulkhead Connector

This Alphacool G1/4" bulkhead connector in chrome lets you route soft tubing through a 21 mm panel hole. It accepts PVC, silicone or neoprene tubing via two standard G1/4" fittings. The brass body uses a chromatised finish that bonds the chrome layer to prevent peeling. Builders creating custom liquid-cooling loops use it to pass tubing cleanly through case walls.

Interface limited to G1/4" thread and soft tubing

The connector only works with G1/4" threaded fittings and compatible soft tubing materials. Rigid acrylic, PETG or metal tubing cannot be used with this fitting. No adapter for other thread sizes is included or described. The chrome-plated brass construction resists corrosion but does not change the thread standard or tubing compatibility.

21 mm mounting hole decides fit

A single 21 mm diameter cut-out is required to install the bulkhead connector. If your panel thickness or hole size differs, the part will not mount securely. No alternative mounting hardware or gasket dimensions are supplied. Verify the exact hole size before purchase.

Highlights

  • G1/4" thread fits standard water-cooling fittings
  • 21 mm mounting hole suits common panel cut-outs
  • Chrome-plated brass resists peeling and corrosion
  • Works with soft PVC, silicone or neoprene tubing
  • Short body saves space in tight enclosures

Specifications

BrandAlphacool
Model1013591
ColorChrome
FeaturesThis bulkhead connector is perfect for applications such as looping through of tubing through the back or side of an enclosure with the help of two fittings. The bulkhead connector itself is safely fixated with the counter-nut and the 1/4“ inner threads can then be used to connect two fittings of your choice.

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Questions about this item

Should I choose the short version or a longer bulkhead connector for my G1/4" loop?

The short version (17423) reduces overall length, making it ideal when panel thickness is limited or when you want a cleaner look with less protrusion inside the case.

What does the 21 mm mounting-hole figure mean when I install this in a real chassis?

You must drill or punch a 21 mm hole in the panel; the brass body then threads through and locks down with the supplied nut for a watertight seal.

How does the G1/4" inner thread limit what tubing or fittings I can use?

Only G1/4" threaded fittings screw into the connector, so you must match soft tubing (PVC, silicone, neoprene) to G1/4" compression or barb fittings — no other thread size will seal.

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