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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
Both have the highest available PAR light output and increased spectrum with use
Our double-ended lamps have less than 5% degradation and significantly increased PAR light production compared to single-ended lamps
• Increased Shelf Life: Increases shelf life of fresh cut vegetables by 5-7 days
Application Rates
21_1/2x23_3/8x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs Both have the highest availableNordic Pure Custom MERV 13 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 condition