Ruck MTP 21 Fan Speed Controller | 0-10V Potentiometer for EC Fans (10kΩ) Earths Friend Humic acid and plant-derived silica

Humic acid and plant-derived silica further support nutrient availability and sturdier structure—ideal for hydroponic systems and other intensive gardens

Double-Thick 10x20 Tray: Sturdy no-hole tray holds water for bottom-watering

The Dry & Mighty Bag Large (25 pack) offers the superior preservation and protection you expect from Dry & Mighty Bags

90W Power Draw: Pulls up to 90W on a 100-240V AC adapter with 19V DC output for stable refugium operation

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Ruck MTP 21 Fan Speed Controller | 0-10V Potentiometer for EC Fans (10kΩ) Earths Friend Humic acid and plant-derived silicaThe Ruck MTP 21 fan speed controller gives precise, stepless control of Ruck EC inline fans through a 10 k potentiometer dial and 0 10V signal. This 0 10V EC fan controller ships with cord and plug, carries an IP44 rating for dust and moisture, and mounts surface or flush. Ruck MTP 21 Fan Speed Controller for Stepless EC Control The Ruck MTP 21 fan speed controller is a 10 k potentiometer that steplessly varies the speed of Ruck EC inline fans over a