Grower's Choice ROI-E200 4-Way Coupler BBTM1L Fills and drains to maintain

Fills and drains to maintain proper amperage draw

These Dual-Level electronic floats are assembled using Schedule 80 PVC components

The additional source of magnesium in Cal-Mag Amplified will drive chlorophyll production and maximize photosynthesis

Quick maintenance with easy filter access that is removable and washable

This product effectively corrects these common deficiencies without throwing off overall elemental balance

Grower's Choice ROI-E200 4-Way Coupler BBTM1L Fills and drains to maintainThis multi connector can power up to four ROIE200's at once through a single connection, providing optimal convenience and efficiency.