Hot Box - Flip-Top Fiberglass Heated Enclosure - HB2S - HF013047028 silt trap They offer relief from hydrostatic

They offer relief from hydrostatic pressure as well as high drainage flow

they won't crack or spall through freeze-thaw

This then reduces maintenance and helps provide a better driving surface as well as a more aesthetically pleasing driveway

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and as an underlayment for sod installations

Hot Box - Flip-Top Fiberglass Heated Enclosure - HB2S - HF013047028 silt trap They offer relief from hydrostaticEasy Maintenance Access Flip top lid design provides quick access. Weatherproof & Vandal Resistance Overlapping lid seam design helps keep vandals and mother nature out. Also includes a lockable top and steel anchors (padlocks are not included). Durable & Corrosion Resistant Reinforced fiberglass with a smooth, UV resistant gelcoat provides a corrosion proof finish that both looks good and stands up to the elements. Superior Freeze Protection Wall