The Gaphog product enabled us to effectively seal floor cutouts in our Legacy Data Center without spending huge amounts of money compared to other products on the market. The inserts have held up well in our environment over the past 5 years. Since installation, none have had to be replaced and stand up well to being removed and replaced as we execute new cable installs or removals after retirement. This was and still remains an innovative product for increasing plenum static pressure by sealing those pesky cutouts in the raised floor tiles, especially when you have to seal up larger cutouts created a decade ago when cooling was in abundance for Data Center spaces. Gaphog was the perfect fit for us when we needed them and remain one of the best investments made in increasing the cooling and power efficiency of our Data Center spaces.