Bluelab pH Soil Pen - Waterproof Digital pH Meter clay pellets Potassium (K) is an essential

Potassium (K) is an essential element for plant growth it is important to food crops

Why Potassium Silicate

Versatile Performance: Handles a wide range of pruning

and oxygen to your plants' roots

Bluelab pH Soil Pen - Waterproof Digital pH Meter clay pellets Potassium (K) is an essentialProfessional pH Testing for Soil and Growing Media The Bluelab pH Soil Pen is a rugged, fully waterproof digital pH meter designed specifically for growers. Get accurate pH and temperature readings in soil, coco coir, potting mixes, and nutrient solutions with this versatile, professional grade pen. Why Choose the Bluelab pH Soil Pen Fully Waterproof: Not just water resistant built to withstand deep water plunges and harsh grow room conditions