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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Use Athena Pro Core and Pro Grow to complete the nutrient profile
5 g: Matched to a single eighth
recirculated room it works best
A PWM-controlled EC motor pushes that airflow while holding noise and power down
UL listed for wet locations: Yes
Kootenay Filter Pre-Filter 3500GL Under Canopy Use Athena Pro Core andExtend Your Air Filter's Life with Quality Pre Filters The Kootenay Filter Pre Filter 3500GL with a 14 inch flange is specifically designed for GL3500 filtration systems. By effectively blocking larger particulates, this pre filter significantly extends your main filter's lifespan and reduces frequent maintenance needs. Reliable Pre Filter Replacement for Optimal Air Quality Ideal for environments demanding robust filtration solutions, this pre filter