Tank Lid, Waterway Pro Clean Plus 125/150 sqft | 550-0621B

Due to the manufacture changing the design of the tank, there is a fitment issue when trying to mate the old bottom (550-0201) to the new tops 550-0611 (75 & 100 sqft), 550-0621 (125 & 150 sqft), 550-0631 (175 & 200 sqft). It is recommended that you replace the bottom when replacing the top.