Hanna 1382 ppm@25C Calibration Solution, 20 ml, case of 25 grow-light-bulbs • Lower heat output—reducing cooling

• Lower heat output—reducing cooling costs

Our lightweight fabric is sealed and lined with premium reflective material with

Humboldt Nutrients Royal Flush supercharges the flushing process by grabbing-up and binding together undesirable salts and heavy minerals

Highest rated CFM on the market

These bags offer a fantastically versatile tool for all around the home

Hanna 1382 ppm@25C Calibration Solution, 20 ml, case of 25 grow-light-bulbs • Lower heat output—reducing coolingHanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments. Comes in a bottle designed to keep air and light from damaging the solution.