The 2 inch Pump Split Nut is used as a replacement for the pump union that would need to be re-plumbed. You can cut off the old pump union and replace with this split nut. This comes with the 2 screws that screw and hold it together.
Master Spa Parts offers this Outer Filter for Getaway Spas Eco Pur Charge System. This replacement filter weights 1.2 pounds and is five inches in diameter. This part has a SKU number of x268550 and is also known as a Getaway Outer Filter PMA-R5.