20pcs 4.00 6.86 pH Meter Buffer Solution Powder for Quick Easy Accurate pH Calibration Water Purity

Description

Features: No need to measure, just mix individual packs with distilled water. Calibration powders enable you accurate and quick test the pH of your pool, aquarium, water with your pH tester/meter. The set includes ten of 4.00 and ten of 6.86 calibration solution for your needs. Ideal for testing pH balance of drinking water, pool, aquarium, SPA or hydroponics. Designed for portability: Individual sized pack can be convenient to carry. Specifications: Prepared distilled water: 250mL for each pack Package includes: 10 x 4.00 pH buffer powder 10 x 6.86 pH buffer powder