Greenleaf Technologies' TurboDrop Variable Rate Extension Adaptor is a variable rate fertilizer injector designed to provide a wider flow range for variable rate applications or wide speed changes. Between 20 and 140 psi, a 3-4x flow rate change is possible.

The TDVREX is designed for use on liquid nitrogen applicators to inject or dribble fertilizer at either a constant or a variable rate across the field.

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