Grower's Choice 4-Point Coupler for ROI-E200 lighting-accessories Expand the lifetime of your

Expand the lifetime of your Oakton pH tester by keeping these replacement sensors on hand

IR: 237 umol (700-800nm)

These boards are supplied without an enclosure since we assume a qualified electrician is going to be putting this inside a panelboard

124% Chelated Iron (Fe)

Important Note: Almost all furnace air filters have a different Actual Size (the exact dimensions) than Nominal Size (the name)

Grower's Choice 4-Point Coupler for ROI-E200 lighting-accessories Expand the lifetime of yourDescription 4 Point Coupler (ROIE200): This multi connector can power up to four ROIE200's at once through a single connection, providing optimal convenience and efficiency.