This part is the Waterway Plastics sand filter lateral. This lateral is the 'twist-n-lock' style lateral. This Waterway Plastics sand filter lateral does not 'thread' in.
Waterway Plastics 19" Sand Filter with 1hp 2 speed pump & motor
Top of the line above ground pool sand filter with a huge 1.5 hp Waterway Plastics pump is the ULTIMATE for any above ground pool...