Spa Fresh Ultra PHMB Test Strips (25)

Spa Fresh Ultra PHMB Test Strips (25) are designed for spas running the Spa Fresh Ultra chlorine‑free, bromine‑free biguanide (PHMB) sanitizing system. These easy‑to‑use strips allow spa owners to quickly check essential water balance parameters for safe, clear, and comfortable water.

Features

• Compatible with Spa Fresh Ultra (Biguanide/PHMB) sanitizing systems
• Helps monitor essential spa water parameters
  • PHMB sanitizer level
  • pH
  • Total alkalinity
  • Total hardness
• Simple dip‑and‑read operation
• Ensures your spa remains clean, clear, and properly balanced