G.A.S UK - 4 Amp Pro Plus Hybrid Controller Beneficial Inoculants day out - one we

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G.A.S UK - 4 Amp Pro Plus Hybrid Controller Beneficial Inoculants day out - one weG. A. S UK 4 Amp Pro Plus Hybrid Controller Silent Step Control with Integrated Heater Output Best for: growers who want quiet, click free AC fan speed control plus coordinated heater switching from the same unit. Our thoughts The "Pro Plus" tag isn't just marketing here it genuinely adds a heater control output on top of the Pro Step Controller's silent transformer based speed steps. If you've used a cheap step controller before and hated the buzzing