Gro Block Improved Small 3Inches GR4 w/ hole (3Inchesx3Inchesx2.6Inches) (8/strip- 48 strips per cs) 384 per case pH | ppm | EC | Instruments

Gro Block Improved Small 3Inches GR4 w/ hole (3Inchesx3Inchesx2.6Inches) (8/strip- 48 strips per cs) 384 per case pH | ppm | EC | Instruments

It also provides a healthy dose of magnesium

These membranes are classified as TFC (Thin-Film Composite)

brass water shut-off valve

easy to clean and convenient to use

Comes with 13' lamp cord

Black Ops filters have a built in flange and 2 pre-filters are included

Rated for up to a 150-Watt bulb (E26)

48x 20: 100W +/-10W Know that: In this price range

3x3 Tray:  42

Cyco Potash Plus (0-4-6) aids in achieving full

Supplied with quality probes and pH calibration solutions

The Fixture Runs 2 pcs 315W CMH Lamp Bulbs