Praher Washer [3" Above] (E-3-S3) skimmerparts Harwil Q10DS flow switch for

Harwil Q10DS flow switch for compatible Dimension One applications

A part like this is useful because it helps adapt the skimmer for vacuum-related use while preserving the intended connection layout of the original assembly

This type of component is especially useful when maintaining an M-Class spa with a three-pump layout and a direct-fit replacement is preferred

Matching the correct gray assembly helps preserve intended fit and dependable safety-line support

responsive operation when paired with the proper control circuit

Praher Washer [3" Above] (E-3-S3) skimmerparts Harwil Q10DS flow switch forPraher 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