Fiberglass Ground Sleeve, 22" x 60" x 18" - 15" x 53" Opening - BG2260181553A00 - Hubbell eastgate-curlex EnkaVent 9323 is a rolled

EnkaVent 9323 is a rolled mat used for radon ventilation

They also have drainage holes to reduce water build up and allow light and air through

They do recommended  adding the Chromalox Heat Cable #30 with 90W of heat

Connecticut CONNDOT - Slope Protection Mat - Class 1 - Type A

Fiberglass Ground Sleeve, 22" x 60" x 18" - 15" x 53" Opening - BG2260181553A00 - Hubbell eastgate-curlex EnkaVent 9323 is a rolledHubbell Box Pads and Ground Sleeves provide a means to securely anchor and support the weight of pad mounted electrical equipment. By utilizing an array of designs, materials and sizes, Hubbell has developed a comprehensive product offeringtailored to meet your needs. We can provide a pad mounted equipment foundation or mounting solution forvirtually any piece of electrical equipment; from single and three phase transformers, to sectionalizing