Horticultural Grade Perlite 4 Cu Lighting or Cyclic (every 1 -

or Cyclic (every 1 - 30 days)

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wye coupler features a quick-snap design for easy install

Master Valve/Pump Start Relay

Horticultural Grade Perlite 4 Cu Lighting or Cyclic (every 1 -Horticultural grade perlite increases water absorption and aeration when added to soil and soilless growing media. Horticultural perlite is commonly used alone for a completely inert hydroponic medium with good capillary and air retention properties, perlite can also be added to any medium to improve texture or combined with COIR (coconut fiber) and bulk granular fertilizers for a customized planting medium. Green house propagation and growing