Pentair Warrior/EasyClean Union Body (79304600Z) pentairrainbow A diffuser like this is

A diffuser like this is useful because it helps control and direct water flow from the impeller into the rest of the wet end

Matching the correct spring helps preserve proper assembly movement and supports cleaner heater service

and S220 filter applications

The Raypak R405 burner tray without burner is designed for compatible heater applications where the supported burner-support tray needs replacement while the burner itself is handled separately

this component sees regular handling and stress

Pentair Warrior/EasyClean Union Body (79304600Z) pentairrainbow A diffuser like this isThis union body is used with compatible Pentair Warrior and EasyClean filter systems to restore a serviceable plumbing connection at the equipment. Unions allow equipment to be disconnected for cleaning, repair, or replacement without cutting plumbing, so a damaged union body can make maintenance more difficult. Replacing the union body helps bring back a secure, removable connection. It is useful when threads, sealing surfaces, or the body itself