Carvin SERIE'S FEATURESBottom drain for winterizing and draining.Ring-Lok access to filter element for "tool-free" servicing.Built-in tooth on Ring-Lok allows you to easily disengage lid.Safety tab lock assures proper installation and safe operation.One-piece body with 2" (51mm) threded connections is injection-moulded from glass-filled thermoplastic, corrosion resistant.Anchor kit included to secure tank to base or pad.Tapered D.E. collection bag allows full flow during b