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Reduce heat stress and improve air quality with Schaefer's uniquely designed circulation fans
They feature razor-sharp stainless steel blades
Storage pouch doubles as lens-cleaning cloth
Timers are also essential for many hydroponic system applications
It comes with a 3-in-1 Temp/Humid/Photocell sensor
GROW!T Clay Pebbles 4 mm-16 mm Size:10 Liter Reduce heat stress and improveGROW! T horticultural clay pebbles are made from 100% natural clay. They are clean, pH stable, and offer great aeration and drainage in hydroponics, especially in flood and drain, deep water culture, and drip feed systems. Due to their unique structure and ability to cover a large surface area, they offer the ideal environment to foster beneficial bacterial growth around the root zone, leading to naturally healthier plants. GROW! T Clay Pebbles