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Ergotron
LX Pro Single Monitor Arm — White

The white 45-682-290 is the exact single-screen LX Pro desk arm for displays up to 34 inches and 22 lb. It adds independent height, reach and rotation to a premium single-monitor desk, but the grommet attachment is a separate accessory.

Exact accessory · MPN 45-682-290 · ASIN B0DSJN4XSX

Reference: Exact accessory · MPN 45-682-290 · ASIN B0DSJN4XSXMPN: 45-682-290Displays: 1Screen size: Up to 34 inchesWeight range: 4–22 lb / 1.8–10 kgVESA: 75 × 75 and 100 × 100 mm
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Ergotron LX Pro Single Monitor Arm — White
MODEL PHOTOExact model shown
Best forA frequently repositioned single monitor within the published weight range
Also strongA premium desk that values long reach and a ten-year warranty
Main limitThe screen must remain between 4 and 22 lb
Check firstA grommet mount is not included with this exact white SKU
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EXACT FINAL CATALOG SHEET

Identity, compatibility and buying decision

Confirmed specifications

  • MPN: 45-682-290
  • Displays: 1
  • Screen size: Up to 34 inches
  • Weight range: 4–22 lb / 1.8–10 kg
  • VESA: 75 × 75 and 100 × 100 mm
  • Lift: 13 inches / 33 cm
  • Extension: Up to 25 inches / 63.5 cm
  • Desk mounting: Two-piece clamp; grommet kit sold separately
  • Warranty: 10 years

Checks before buying

MPN: 45-682-290

Amazon.ca ASIN: B0DSJN4XSX

  • The screen must remain between 4 and 22 lb
  • A grommet mount is not included with this exact white SKU
  • Confirm desk thickness, VESA pattern and screen depth before buying

Good choice for

  • A frequently repositioned single monitor within the published weight range
  • A premium desk that values long reach and a ten-year warranty

Real limitations

  • The screen must remain between 4 and 22 lb
  • A grommet mount is not included with this exact white SKU
  • Confirm desk thickness, VESA pattern and screen depth before buying

Alternatives

  • Two independent gas-spring arms for asymmetric monitors
  • A single-monitor arm when only one display needs articulation
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Product and media sources · checked September 5, 2026Official manufacturer sheet →Exact-media source →

Other useful details

Additional checks

  • Confirm desk thickness, VESA pattern and screen depth before buying
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