The smart Series allows the end-user to completely control the filtration flow and method being used... The theory behind the smart series design is the hobbyist can change his or her mind on what filtration they want to use but will never need to change sumps! You don't want to miss out on these excellent craftsmanship.  Bashsea once again is bringing a spetacular sump to the industry, sparing no expense and cuting no corners when it comes to their line sumps. All Bashsea sumps are CNC and laser machined using a 2-step properitorial welding process right here in the USA. Utilizing a combination of 1/4" and 3/8", 100% ultra grade, all American cast acrylic, these sumps are built to last and will make you want to remove the cabinet doors to show how jaw-dropping your system looks now. 

 

Two sets of down tubes-- one short set if socks are being used and a longer set if the triton method is being used or you're not using the socks