“MEGA” Teleweir is a extra large housing designed for swim spas. The cage style tower eliminates “vortexing” created by the larger swim spa pumps. High capacity 2.5″ socket in/out plumbing and a built in check valve. The hole size needed is 8.5″ diameter and the overall height is 27.5″ to top of weir cap. This is a 75 square foot cartridge (7″ diameter, 16.25″ tall with closed top) Available at http://www.waterwayparts.com
Part number 519-8350 is molded into the cap.(this is not the part number for the entire unit. The entire filter in “black” with no logo is 510-4570
Replacement cartridge is available 817-4175 (must be OEM)