Insta-Test 3040-G High Range Phosphate Test Strips, 25 per Bottle above-ground-pump-filter 📝 Note: For best results

📝 Note: For best results

⚠️ Always confirm fitment by part number and spa model prior to purchase

or safety shutdowns

or topside control

Insta-Test 3040-G High Range Phosphate Test Strips, 25 per Bottle above-ground-pump-filter 📝 Note: For best resultsInsta Test 3040 G High Range Phosphate Test Strips 25 Strips per Bottle Quickly and accurately check phosphate levels in your pool or spa water with the LaMotte Insta Test 3040 G High Range Phosphate Test Strips. Designed for fast results and easy use, these test strips provide reliable readings for phosphate concentrations, helping you maintain clean and clear water. Fast Results: Delivers phosphate readings in just 15 seconds for 0, 100, 200, 300,