24 1/2x27x1 Trane ReplacementMERV 12 Plus Carbon AC Furnace Filters 6 Pack Hydroponics You can plug the trigger

You can plug the trigger cable into a standard 24-hour timer or environmental controller

(9) 1 gallon (8″) pots

seamlessly fitting over your inline duct fan’s flange

The reels on these machines are 5” in diameter and 21″ in length

The pHEP 5 includes a dual-level LCD

24 1/2x27x1 Trane ReplacementMERV 12 Plus Carbon AC Furnace Filters 6 Pack Hydroponics You can plug the triggerNordic Pure 24 1 2x27x1 Trane Replacement MERV 12 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: