Glacier Precast 3 PH electric vaults are generally used for underground utility installations, and for distribution lines and transformers. Our vaults come with a variety of standard options and we can meet any custom needs you may have. Our standard vaults can have 4" or 6" duct terminations and vaults can be cast with an open bottom and knockouts to retain existing cable. Standard lids have openings and imbedded anchors as specified by Flathead Electric, with a solid lid optional. As always, we can cast custom lids to meet your specific electrical equipment or utility provider's needs.