Description
Master Clear Metal Protect: Spa Water Metal Sequestrant (16 oz)
Master Clear Metal Protect is a liquid chelating agent formulated to neutralize dissolved metals in hot tub and swim spa water. Iron, copper, manganese, and other trace metals commonly found in well water and some municipal sources can cause staining, discoloration, and equipment damage if left untreated. Metal Protect binds to these metals and holds them in solution, preventing them from depositing on acrylic surfaces, heater elements, jets, and internal plumbing.
Key Features & Specifications
- Size: 16 fl oz (473 mL)
- Type: Liquid metal sequestrant / chelating agent
- Targets: Iron, copper, manganese, and heavy minerals
- Compatibility: Safe for all hot tubs and swim spas — not limited to Master Spas models
- Water Chemistry Impact: Does not alter pH, alkalinity, or sanitizer levels
When to Use Metal Protect
Add half a bottle (8 oz) of Metal Protect each time you drain and refill your spa. This is especially important if your water source is well water or has known elevated metal content. Regular use helps prevent:
- Green, brown, or rust-colored staining on spa surfaces
- Discolored or cloudy water after shocking or adjusting pH
- Scale and mineral deposits on heater elements
- Purple crystal formation (a common sign of copper or manganese in spa water)
Part of the Master Clear Water Care System
Metal Protect works best alongside other Master Clear products including Scale Defense for calcium control and the complete Master Clear Bundle Package for full water care coverage.




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