ROCKWOOL Mini Blocks 1.5" Starter 45 MM4040 2KG The Bluelab pH Probe has

The Bluelab pH Probe has a Double Junction Reference which provides a longer life than many other pH probes and is a gel-filled non-refillable probe

Philips brand 1000 Watt clear metal halide lamp with mogul base

Same as the Can-Filter brand

Equipped with Repeater Bus interface which is a double-port connector on the ballast that allows you to directly daisy chain 100 fixtures per string and five strings per controller port to connect a maximum of 500 fixtures per controller port

Key features: Corrects common deficiencies Works well as a foliar spray or root drench Excellent conditioner for coconut coir-based growing

ROCKWOOL Mini Blocks 1.5" Starter 45 MM4040 2KG The Bluelab pH Probe hasStarter MINI BLOCKS can sit in a tray (flat) without support for easy starting of seeds and cuttings. They are individually wrapped to minimize algae growth. For best results put them on the flat side of the GRO SMART Tray to ensure good airflow around the cubes. Remove wrapping and transplant into any loose media such as GROW CUBES or GROW CHUNKS, or leave wrapping on and set on top of a larger GRO BLOCK. These cubes are popular for production of