Pentair Mechanical Shaft Seal, Ozone/Salt Resistant | SuperMax, SuperFlo, Challenger, IntelliFlo3 | 356210S Chlorine Neutralizers (2) 1/4 Inch Washer

(2) 1/4 Inch Washer

Sta-Rite and Jacuzzi Earthworks EW 72 systems use 8 full grids only — no partial grid required for those models

Durable aluminum frame with a deep mesh net and easy to change replacement net (sold separately

The Commercial Size Feeder (300-29X) and In-Line Automatic Feeder (320) share this valve

Inside Opening Height: 5-3/8"

Pentair Mechanical Shaft Seal, Ozone/Salt Resistant | SuperMax, SuperFlo, Challenger, IntelliFlo3 | 356210S Chlorine Neutralizers (2) 1/4 Inch WasherThe Pentair Mechanical Seal (356210S) is the OEM replacement shaft seal for Pentair SuperMax, SuperFlo, Challenger, and IntelliFlo3 IntelliPro3 pump lines specifically formulated with ozone and salt resistant materials for pools running salt chlorine generators or ozone sanitation systems. The mechanical seal sits between the pump's wet end and motor, creating a watertight barrier around the rotating shaft. When this seal wears or degrades, water