Koolance will be closed May 27th for Memorial Day. Orders placed after 10AM Pacific on Friday, May 24th will be processed on Tuesday, May 28th.close



PC3-420SL Liquid Cooling System, Silver [06mm, 1/4in]

Part No. PC3-420SL This product is archived and displayed for information only. It is no longer available for purchase. Released: 06 December 2004
ID: 6mm (1/4")
OD: 10mm (3/8")
Wall: 2mm (5/64")
Intended Tubing Size

The aluminum Koolance PC3-420 provides easier assembly, a blue LED temperature display, top coolant plug, and more drive mounting space over PC2 systems. Ideal for single CPU, video card, and hard drive liquid cooling, this entry-level system also includes new chassis features!

  • 3 radiator fan speeds, including one automatic mode
  • Top coolant fill plug
  • Stainless steel front bezel inlay
  • Removable motherboard tray
  • Side door handle
  • Sliding hard drive trays and CD rails for easy installation
  • Front USB 2.0, 1394 Firewire, and audio ports
  • Mounts included for optional 80mm fans (2 front, 2 rear)

Weight 23.00 lb (10.43 kg)
Cooling Systems
Display Type LED
Fans 2 x 80mm (84CFM)
Max Flow Rate (10-13mm ID) R-PMP01
Power Source 12 VDC
Radiator Aluminum
Temperature Sensors 55K Thermistor

Liquid Coolants

Koolance's product warranty does not cover the use of 3rd-party coolants, coolant additives, or corrosion. Koolance LIQ-702 or LIQ-705 coolants are strongly recommended to help avoid issues with mixed metals or biological growth. Additionally, do not use aluminum with bare (unplated) copper or bare (unplated) brass in the same system. Do not use silver with nickel in the same system.