Praher Washer [3" Above] (E-3-S3) polariszodiac That adds a practical service

That adds a practical service advantage beyond simple replacement

Replacing them together can help refresh both union sealing points and improve confidence in the condition of the plumbing connections

Useful when the original flange is damaged or leaking

Supports air switch and heater related configuration needs

Praher Washer [3" Above] (E-3-S3) polariszodiac That adds a practical servicePraher Washer [3" Above] (E 3 S3) is replacement hardware from Praher Plastics for compatible pool and spa valve service applications. Washers help distribute load, support proper fastening, and protect connected components when related valve or equipment hardware is tightened during repair. When working on pool and spa plumbing, valve, or electrical systems, matching the correct manufacturer part number is important. Use part number E 3 S3 to compare