The part number 519-3010 refers to a set of two diverter plates manufactured by Waterway Plastics.
These plates are used in Waterway's Dyna-Flo top-mount and front-access skim filters in various spas and pools.
General Information
Part Description: The item is a small, usually black, plastic plate that sits within the filter basket assembly to control or divert water flow.
Manufacturer:Waterway Plastics.
Usage: It is a component of the Dyna-Flo Top Mount Skim Filter series, essential for the proper filtration dynamics of the system.
Compatible Spa Manufacturers & Part Numbers
Many different spa manufacturers use Waterway components. The following manufacturers and part numbers cross-reference with the Waterway 519-3010 diverter plate:
Cal Spas: This part is used in various Cal Spas models and can be referenced by the Cal Spas part number 519-3010 or the Horizon part number 17-270-1108.
Master Spas: Used in some specific filter assemblies found in Master Spas hot tubs.
Waterway: As the manufacturer, they use this part across their compatible filter lines, sometimes referencing it with internal catalog numbers like 4096-33 or replacement SKU WWP-251-8040.
Other Vendors: The plate is also available through various spa parts distributors who may use their own SKUs, such as:
605669 (Leslie's Pool Supplies)
806105094438 (UPC/EAN number)
17-270-1106
4-05-0284
This part is primarily a replacement component for specific Waterway filter systems, so compatibility is determined by the skimmer assembly type rather than the spa's brand alone.