The Sliding Door Vault Hatch is a fiberglass access hatch fixed on stainless steel rails. It’s used for accessing collector tanks, typically inside a mechanical room or buried below ground, for ease of access to the tank. While Delta Fountains offers several hatch styles, this is the only style that requires more of the collector tank surface to be visible, in order to allow the hatch to fully slide along the rails. For help choosing which hatch style is right for your project, contact us today.