Pentair Diffuser | SuperFlo VS / VST & SuperMax VS Variable Speed Pumps | 355949Z Diverter Valves confirm your filter model on

confirm your filter model on the label before selecting your replacement to ensure you're ordering the correct OEM part number

9" Slide Flange is made from Cycolac Plastic

💧 Oil-Free & Water-Soluble – No greasy residue or water imbalance

For Jetted Tubs:

it is resistant to corrosion — but scale buildup or grit on the seating surface can prevent a flush fit and cause leaks after reassembly

Pentair Diffuser | SuperFlo VS / VST & SuperMax VS Variable Speed Pumps | 355949Z Diverter Valves confirm your filter model onThe Pentair Diffuser (355949Z) is the OEM replacement diffuser for the SuperFlo VS, SuperFlo VST, and SuperMax VS variable speed pump families. What It Does The diffuser sits directly behind the impeller inside the pump wet end, converting the high velocity water leaving the impeller into pressure. A cracked, worn, or missing diffuser reduces hydraulic efficiency and can cause the pump to lose prime or deliver insufficient flow replacing it with the