21x27x1 Trane Replacement MERV 10 Plus Carbon AC Furnace Filters 6 Pack ventilation and ducting 9% of previously lost light

9% of previously lost light while increasing lumen availability up to 300%

This replacement sodium 1000W/Wet 26 MFD/525 VAC MIN capacitor is suitable for all Hydrofarm 1000W high pressure sodium and convertible magnetic ballasts

It should be applied early in the pest cycle to prevent the rapid build-up of pest populations

Lacewing larvae are preferred to Assassin Bugs and Minute Pirate Bugs in some growing environments as they are less likely to feed on other beneficial insect populations

21x27x1 Trane Replacement MERV 10 Plus Carbon AC Furnace Filters 6 Pack ventilation and ducting 9% of previously lost lightNordic Pure Trane Replacement MERV 10 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: Furnace and air