Hurricane®, Commercial Grade, 4" Inline Duct Fan (171 CFM) pH Meter Accessories For deep water culture systems:

For deep water culture systems: change reservoir once every 3-5 days

Safe to use while plants are growing

plus heavy doses of B2

and other calcium intensive plants

Hurricane®, Commercial Grade, 4" Inline Duct Fan (171 CFM) pH Meter Accessories For deep water culture systems:Hurricane Inline Centrifugal Fan, Commercial Grade, Inline Duct Fan 4" (171 CFM) For Ventilation Hurricane Inline Fans are commercial grade, high performance fans. The housings are made of steel with a durable powder coated finish. Made with quality UL components for quiet operation. Includes mounting brackets with easy to follow instructions. Easily installs in minutes. These fans come with an 5 ft 120 V power cord. Recommended for use with: Phresh &