Nature2 Spa Test Strips, 50/Pack | W29300

Made for hot tubs sanitized with a Nature2 mineral cartridge and MPS shock, these quick-dip strips confirm your water is in the zone your Nature2 system needs — in seconds, with no mess and no fuss.

• Purpose-built for Nature2 spa systems using MPS (monopersulfate) shock
• Checks the readings that matter — MPS level, pH, and total alkalinity
• Dip, wait seconds, compare — instant color-match results on the bottle chart
• 50 strips per pack — several months of regular testing
• Genuine Nature2 (W29300) for readings matched to your system's requirements

Test before each use of your spa to keep water balanced and your mineral cartridge working at its best.