20x30x1 Nordic Pure Tru Mini Pleat MERV 11 AC Furnace Air Filters 3 Pack Reflective & Greenhouse Films Comes in a 500 foot

Comes in a 500 foot roll

Using a high-frequency ballast increases the risk of the lamp exploding and possibly causing injury

With reduced blowouts you are able to track your yields more accurately

The pH readings are displayed with a 0

This portable refractometer is a convenient way to measure the Brix level of your plants

20x30x1 Nordic Pure Tru Mini Pleat MERV 11 AC Furnace Air Filters 3 Pack Reflective & Greenhouse Films Comes in a 500 footNordic Pure MERV 11 Tru Mini Pleat AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Mini pleat A C air filters have 3 times the pleats than an average air filter, providing more surface area to capture and remove unwanted, harmful particles. More pleats ensure maximum efficiency without increasing air flow resistance. This saves you money on HVAC system maintenance and increases the life of your