21″ Quadro Undermount Drawer Slides, Soft Close FE-Box of 10 Pairs


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Undermount Slides Boxes 5 - 9 5%
Undermount Slides Boxes 10 - 19 7%
Undermount Slides Boxes 20 + 9%

Hettich LogoHettich 21 inch, Soft Close Full extension Quadro Undermount Slide. The Silent System Quadro V6 full extension undermount drawer slide is designed for wood drawers with a 75lb.dynamic (100lb. static) load capacity. The spring operated soft close mechanism acts independently of load and closes the drawer safely and automatically. The hallmark of Hettich’s patented design gives it perfect vertical and lateral stability. The resilient maintenance-free tracks ensure optimal smootheness with its’ precision guided ball bearings. A quick, superb fit, with simple slide-on assembly, the drawer is placed on the runners and simply pushed into place. The catch automatically locks the drawer securely to the Quadro. The integrated height adjustment makes for perfect front panel adjustment – no tools needed. The blue thumbwheel moves a wedge into position between the drawer bottom panel and runner. Unlatching the drawer and removing it from the runners is just as easy. The height setting is not changed when the drawer is removed. The Quadro runners are self-cleaning. Any dirt is swept aside by the steel balls. Smooth action is unaffected even after years of reliable service.  

This drawer slide can NOT be reto-fitted with existing drawers and is NOT a DIY friendly slide.
Installation width: 21 mm to the inside bottom of the drawer. Front mounting clips for 1/2″ and 5/8″ thick drawer side and included in the price.


  • Undermount with Full Extension
  • Steel ball bearings
  • Self-cleaning runners
  • Soft Close mechanism
  • Can not be retro-fitted in existing drawers
  • Mounting clips included
  • What’s Included

  • 10 pcs. of 9134331 21 inch, Soft Close FE Quadro Undermount Slide, Left Hand
  • 10 pcs. of 9134332 21 inch, Soft Close FE Quadro Undermount Slide, Right Hand
  • 10 sets of 9026839 Quadro IW21 Front Fixing Clips For 1/2″ & 5/8″ – Pair


    Specifications Hettich Quadro IW21 Specifications (1 mb PDF file)

    More Help Drawer Slide Terms

    Email Support Email Technical support for Drawer Slides

  • Weight 5.46 lbs
    Dimensions 23 × 7 × 7 in

    Installation width

    Weight Class



    Soft Close


    Model Number



    Disconnect Type



    Closed Length

    Unit of Measure

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    2 reviews for 21″ Quadro Undermount Drawer Slides, Soft Close FE-Box of 10 Pairs

    1. Gene Louis (verified owner)

      Quadro slides and hardware
      I can not say enough good things about this hardware and OVIS. I had an issue in the original order. They overnighted the replacement immediately. Such exemplary service is rare and refreshing. Love Ovis. Love Hettich hardware. More importantly, my customer loves the product.

    2. Theodore Zoli (verified owner)

      Great service
      Well they warn it is not a DIY unit and it actually is as long as you can decipher the measurements. Make sure you can add, subtract, multiply and divide fractions before starting. The slides are wonderful once installed. They make any drawer installation a pleasure, and work flawlessly.

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