Pay in 4 interest-free payments of $31.07 Learn more
Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
Net Weight (lb): 33
• Bluelab pH and ppm Pens (Item #'s BLU2210 and BLU2221)
making them adaptable to any container size
Add 1/2 teaspoon per gallon to your feedings
20 is great for customers who want that additional control
20_1/2x25_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Meters & Solutions Net Weight (lb): 33Nordic Pure Custom MERV 8 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
