Ruck 14'' Intake Filter Box with MERV 5 Mat Filter pH Adjusters Please note: The Physan 20

Please note: The Physan 20 instruction booklets state that Physan should not be used in "irrigation systems"

or 500ml of Roots

Foliar Equipment Wash & Rinse Application: 4 to 6 ml per 4 liters (1 gallon) (Use RO or distilled water when using in foliar spray equipment)

A 7-year warranty backs multi-cycle commercial rotations

Ruck 14'' Intake Filter Box with MERV 5 Mat Filter pH Adjusters Please note: The Physan 20Ruck 14" Intake Filter Box for Efficient Airflow Filtration Designed for optimal performance, the Ruck 14" Intake Filter Box is made from durable galvanized sheet steel that ensures minimal airflow restriction. This intake box includes an ISO Coarse 45% MERV 5 rated fiber mat filter, providing effective low intensity exhaust filtration. Its toggle type fastener allows for quick and secure access during filter changes. Ideal for use in grow rooms and