Answer
Mar 05, 2021 - 04:00 PM
Autopilot's manual (linked below) states "NSF/ANSI Standard 50 - Circulation System Components and Related Materials for Swimming pools, Spas/Hot Tubs"
https://autopilot.com/wp-content/uploads/2016/10/professional_manual.pdf
https://autopilot.com/wp-content/uploads/2016/10/professional_manual.pdf