$151.20 USD

Use the enhanced Chief Kontour KRA221 K1C Expansion Arm Kit to add an additional K1C monitor arm to an existing K1C installation. This provides a fast and easy means of upgrading from an existing single-arm K1C120 to a dual-arm K1C220 configuration.

The KRA221 can be used to add a 3rd and/or 4th arm to a center-of-table multi-workstation configuration, using the KRA226 grommet plate accessory.

Technical drawing for Chief KRA221B or KRA221S Kontour K1C Expansion Arm Kit



Black, Silver

Weight Capacity

5 - 22 lbs. (2.3 - 9.9 kg)

Shipping Weight

11.50 lbs


  • The KRA221 provides an easy means of expanding a K2C120 single-arm mount to a K2C220 dual-arm mount

  • Use the KRA221 to add a 3rd and/or 4th arm to an existing K1C installation as well

  • 4-arm configurations require the KRA226 center-of-table grommet plate accessory

  • K1C120B and K1C220B for detailed specifications

Model KRA221B, KRA221S
Manufacturer Chief Mounts
Part Number KRA221B, KRA221S
Color Black, Silver
Shipping Weight 11.50 lbs
Weight Capacity 5 - 22 lbs. (2.3 - 9.9 kg)
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