SunPack Propagation Tray, 10" x 20" Black W/Holes - Case of 100 commercial-lighting-fixtures NPK / 1 - 4

NPK / 1 - 4 - 3

The calibration buffers are automatically recognized and after calibration the buffer values used are shown on the display as a tag

These four products combine to form the backbone of HN's natural feeding schedule and can easily be expanded with more natural Humboldt Nutrients additives and products

3 gallon aluminum vacuum chamber

SunPack Propagation Tray, 10" x 20" Black W/Holes - Case of 100 commercial-lighting-fixtures NPK / 1 - 4Case of 100 STRONG AND DURABLE Built from ultra tough, top grade BPA free black plastic LARGE SIZE With an outer dimension of 21. 2" x 11" x 2. 48", these trays are big enough for not just seed germination, but also seedling small plant development DRAIN HOLES These trays have drain holes, which make them suitable for plants like wheatgrass that cant tolerate standing water VERSATILE AND REUSABLE Trays are multi purpose and can be used in indoor