Sling Hygrometer Replacement Tubes - Fahrenheit - fits Sper Psychrometer #736710 Nutriants Solid Start is a way

Solid Start is a way to ensure that your veg cycle will be as successful as possible

sparks and open flames

Shake well and measure carefully using a milliliter measuring cup

It is compatible with various growing media:

Choose to run anything from a single light bar to the full 5 line-up at any intensity you need by simply adding or removing the desired amount using the fixtures’ innovative smart and easy

Sling Hygrometer Replacement Tubes - Fahrenheit - fits Sper Psychrometer #736710 Nutriants Solid Start is a wayRefill for 20 to 120 Fahrenheit Sling Psychrometer Model #736710 These refill tubes use a red liquid and are specifically made to work with our high quality Sling Psychrometers.