Pentair Sta Rite S7D75 Collection Manifold (24800 0100Z) o rings Raypak 206A Uncommon Refractory Kit Raypak 206A Uncommon Refractory Kit is a common refractory kit for the Raypak heater model identified in the title and WB compatibility and 7 1 4 inch diameter by 6 inch height relationship give this float practical value because skimmer float parts work best when they match the original dimensions and movement style closely Replacing the manifold helps restore the intended flow path through the cartridge or grid assembly and supports cleaner water circulation filter performance can decline and internal pressure may become inconsistent