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Matte-black brass compression fitting with G1/4 thread and hidden O-ring

Bitspower

Bitspower BP-MBCPF-CC6U G1/4" 7/16" ID 5/8" OD compression fitting

SKU CH-ZJFV-9NDBE MPN BP-MBCPF-CC6U

Connects 7/16" ID soft tubing to G1/4" ports with a matte-black brass compression fitting

  • TypeFittings
  • True Hi-Flow design maximises coolant throughput
  • G1/4" thread fits standard water-block ports
  • Hidden O-ring seals without visible rings
  • Hi-quality brass body resists corrosion
  • Matte black finish matches stealth builds

Straight G1/4" compression fitting

This Bitspower fitting connects soft tubing with a 7/16" inner diameter and 5/8" outer diameter to any component featuring a standard G1/4" thread. The matte black brass body uses a hidden O-ring design to maintain a clean appearance while sealing reliably under pressure. Its true hi-flow internal geometry minimises restriction for custom-loop builders.

Suits single-loop custom cooling

Enthusiasts assembling a custom water-cooling loop with matching soft-tubing dimensions will find the correct thread and seal here. The 5 mm thread length fits most water blocks, radiators, reservoirs and pumps without bottoming out. Builders using hard tubing, different inner-diameter sizes, or push-on barb connections cannot use this fitting.

G1/4" thread with 7/16" ID / 5/8" OD

The decisive specification is the combination of a G1/4" male thread and the precise 7/16" inner diameter paired with a 5/8" outer diameter for soft tubing. Only tubing manufactured to those exact dimensions will compress and seal correctly on this fitting. Verify your tubing measurements before ordering.

Highlights

  • True Hi-Flow design maximises coolant throughput
  • G1/4" thread fits standard water-block ports
  • Hidden O-ring seals without visible rings
  • Hi-quality brass body resists corrosion
  • Matte black finish matches stealth builds

Specifications

TypeFittings

Questions about this item

How do I install this G1/4" compression fitting onto my water block without leaking?

Thread the fitting 5 mm into the G1/4" port by hand, then snug it with a wrench; push the 7/16" ID soft tubing fully over the barbs so the hidden O-ring seals, and tighten the compression collar evenly.

Which part of this fitting will need replacement first after long-term use?

The hidden O-ring inside the compression collar is the wear item; it can degrade from coolant additives or repeated disassembly, so keep spare O-rings for the 7/16" ID size.

What flow restriction appears first when running this fitting at high pump speeds?

The true Hi-Flow design minimises restriction, but the 7/16" inner diameter of the tubing remains the narrowest passage and sets the practical flow ceiling.

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