Glycerin Liquid Filled Pressure Gauge, 0 – 400 psi organic Includes informative booklet with lighting

Includes informative booklet with lighting recommendations

Professional led chip combinations brings full spectrum(sunlight) which can provide excellent output for the whole grow stages

Hanna suggests cleaning the bulb and junction of your electrode on a regular basis to ensure that the probe is always clean and prevent any clogging of the junction

Colloidal Silver or whitening products

The trays have no holes

Glycerin Liquid Filled Pressure Gauge, 0 – 400 psi organic Includes informative booklet with lightingZenport LPG400 Zen Tek Instruments liquid glycerin filled 400 PSI pressure gauge is an excellent choice for vibrating environments, such as around working machinery and is built with a 2. 5 inch diameter ABS case with 372 plastic window, 1 4 NPT brass bottom connection and brass internal mechanism. Glycerin helps prevent icing and moisture penetration. This gauge is great for use with water systems, air tanks, oil systems and more. This quality gauge