WaterLink® Spin Disk Series
Item I.D. 4329-H, Single Use Disk
10 Test Parameter Disk Series
Four different Spin Disks Ideal for Service, In-Store, and Public Pool Testing.
The NSF/ANSI 50 certification mark on a water quality testing device (WQTD) used in recreational waters, such as pools and spas, means that the product was reviewed and certified by NSF International to meet applicable American National Standards for product design and performance. NSF tests and re-tests products to confirm that they comply with all requirements of certification for performance, accuracy and operating range. Certification levels of L1, L2, and L3 are possible with L1 being the highest rating.