Upsite Koldlok 20100 Wave Split Integral Raised Floor Grommet

Designed to seal openings in new raised floor cutouts prior to the installation of communications, power, or other cabling. In a study done by Upsite Technologies on 19 computer rooms totaling over 204,400 ft , it was found that 60% of valuable cooled air is not reaching the air intakes of IT equipment.

The KoldLok Wave was developed to provide the best seal against this wasted airflow.

Note: This KoldLok Grommet is sold as a single unit.

KoldLok 20100 - Click to enlarge

Price: $75.00
NOW: $71.25
Save: $3.75
Dimensions11"Wx8 7/8"Dx1 7/8"H


  • Sealing Effectiveness - New, patent-pending wave shaped thermoplastic elastomer offers the best sealing against bypass airflow, unsurpassed by any brush grommet on the market.
  • Usable Cable Area - O ers 45.5 sq inches of usable cable area, over two and a half times that of a leading brush competitor.
  • Maintenance Free - Wave shaped material seals around cables with no additional maintenance or monitoring required.
  • Configuration - Split design allows edge cut tiles to be removed without capturing cables. Fire Resistant - Thermoplastic elastomer material is rated UL94 HB.
  • Longevity - Durable, impact-resistant ABS frame.
  • Safety Cover - An optional cover is available to ensure greater safety before rack and cable installation.


  • Increases cooling unit effectiveness
  • Allows for greater IT density in data centers Increases static pressure under the raised floor
  • Improves cool air delivery through perforated tiles and floor grates
  • Decreases humidity control expense
  • Meets a prerequisite for hot aisle/cold aisle best practices and containment strategies
  • Reduces the need to buy additional cooling units

Patent Pending Sealing System

Utility and design patents registered and pending for both the U.S. and worldwide. The KoldLok Wave design uses thermoplastic elastomer to wrap around penetrants, creating a more effective seal.

Floor Mounting System

Four (4) self-drilling screws are provided for installation.

Grommet Frame

The frame is molded from durable ABS.
Finish: Black

Thermoplastic Elastomer (TPE)

TPE material is overmolded to frame to create a flexible sealing membrane with a tear strength of 100lbf/in (ASTM D624).

Dimensions and Tile Cutting Requirements
Overall size11" x 9" x 1 7/8" (279 x 229 x 48mm)
Product height above the raised floor3/8" (10mm)
Usable cable area7" x 5 7/8" 9197 x 149mm)
Minimum cut required to install Grommet in interior of the tile9 1/4" x 6 3/4" (235mm x 172mm)
Koldlok 20100 Split Integral Wave Grommet - 10 Pack
Koldlok 20100 Split Integral Wave Grommet - 10 Pack
  • Wave shaped thermoplastic elastomer offers the best sealing against bypass airflow
  • Overall Size: 11 x 9 x 1.875in.
  • Usable Cable Area: 7 x 5.875 in.
  • Frame: molded from durable ABS, black finish
  • Four (4) self-drilling screws are provided for installation
  • Sold in a pack of 10

Upsite KoldLok 20101 Wave Grommet Cover
Upsite KoldLok 20101 Wave Grommet Cover
Wave Grommet Cover for KoldLok 20100 - Single Unit

Question: Did you ship to Mexico, what is your delivery time?
Answer: Thank you for your inquiry. Unfortunately, we are not currently shipping to Mexico. To locate a local distributor please contact Upsite directly at