Phobya R27-S420 Radiator 420mm 18 FPI Copper Fins 2x G1/4 Black
Phobya R27-S420 Radiator 420mm 18 FPI Copper Fins 2x G1/4 Black, photo 2
Phobya R27-S420 Radiator 420mm 18 FPI Copper Fins 2x G1/4 Black, photo 3
Phobya R27-S420 Radiator 420mm 18 FPI Copper Fins 2x G1/4 Black, photo 4
Phobya R27-S420 Radiator 420mm 18 FPI Copper Fins 2x G1/4 Black, photo 5
Phobya

Phobya R27-S420 Radiator 420mm 18 FPI Copper Fins 2x G1/4 Black

SKU HC-668403MPN 1026233

  • 420 mm
  • 27 mm thick
  • Copper

Highlights

  • 420mm radiator supports three 140mm fans
  • Slim 27mm height fits tight case spaces
  • 18 FPI copper fins for high heat dissipation
  • Dual G1/4-inch threads for standard fittings
  • Pressure tested to 1 bar with 10-year warranty
  • Includes M4 fan screws and 6mm mounting screws

Key specs

Size
420 mm
Thickness
27 mm
Material
Copper
Color
Black
Fin Density (FPI)
18 FPI
Pressure tested (up to)
1 Bar
All specifications
$61.99
  • ≈ 0.0008117 BTC
  • ≈ 0.02737 ETH
  • ≈ 62.07 USDT

In stock Ships by Tue, Nov 10 when paid today.

  • Delivery to the United States: $39.90 DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today
  • Rate locked at checkout Up to 60 min to send BTC, 30 min for ETH and USDT
  • New, sealed and genuine Manufacturer warranty: 10 years
  • 30-day returns Unused items in original packaging
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Overview

A low-profile 420mm copper radiator designed for custom water cooling loops. It fits three 140mm fans and suits quiet high-performance builds.

Design and Build

The radiator measures 413mm long, 144mm wide, and 27mm thick. It uses 99.9% copper fins, H65 copper water channels, and H62 brass chambers. The black finish covers the cage, fins, and end tanks.

Cooling Performance

An 18 FPI fin density provides a large surface area for effective heat transfer at low fan speeds. The multipass flow design supports three 140mm fans for silent or high-output configurations.

Installation and Compatibility

Standardized mounting holes accept included M4 screws for 30mm fans and 6mm case screws. Two G1/4-inch threads connect to standard fittings and tubing for flexible loop integration.

R27-S420 Radiator 420mm 18 FPI Copper Fins 2x G1/4 Black specifications

General
BrandPhobya
Manufacturer part no.1026233
EAN4049469346409
Warranty10 years (manufacturer)
Radiator Specifications
Fin Density (FPI)18 FPI
Pressure tested (up to)1 Bar
Type
Radiator typeMultipass
Fan Support
Fan Compatibility3x 140 mm
Fan / radiator mountingM4 thread
Water Cooling
Water cooling connectors2x G1/4"
Lighting
Lighting / RGBNo
Color
Primary ColorBlack
Main radiator color (cage)Black
Main radiator color (fins)Black
Materials
MaterialsCopper
Heat Sink MaterialAluminum
Dimensions
Length / Depth413 mm
Width144 mm
Height27 mm
Radiator Size420 mm

Specifications come from the manufacturer and can change without notice. Check the box contents and compatibility before ordering; our team answers questions within one business day.

Shipping & returns

Delivery to the United States: $39.90DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today

Ships from our warehouse in Germany: in stock, it leaves within 1–2 business days, tracked to the door.
ToBusiness daysThis item
GermanyDHL Paket1–2$5.90
Other EU countriesDHL Parcel International2–8$11.90–$15.90
UK, Switzerland and NorwayDHL Parcel International3–7$24.90
United States and CanadaDHL Express Worldwide2–5$39.90
Asia and the Middle EastDHL Express Worldwide2–5$49.90
Australia and New ZealandDHL Express Worldwide3–6$59.90
  • Discreet packaging Plain, unbranded box — no crypto or brand references outside
  • Returns 30 days for unused items in original packaging; faulty items are on us
Rates and delivery times by country

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