Pentair Sta-Rite System 3 Bulkhead/Elbow Assembly (25021-0100Z) 2345valves Replacing the igniter can help

Replacing the igniter can help restore dependable burner startup while keeping the repair focused on the affected ignition circuit

Helps restore internal sealing in supported valve assemblies

Useful when the original hoses are worn or leaking

or no longer supports the filter assembly as intended

and this Polaris and Zodiac version is designed for 9300

Pentair Sta-Rite System 3 Bulkhead/Elbow Assembly (25021-0100Z) 2345valves Replacing the igniter can helpThis bulkhead and elbow assembly is used on Sta Rite System 3 filters where water must transition cleanly through the tank connection. Because the assembly combines a sealing point and directional fitting, damage can affect both leak control and flow routing. Replacing the assembly helps restore the intended plumbing path without relying on mismatched adapters. Combines bulkhead and elbow functions for compatible filters Supports correct flow