23_1/4x29_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Water Heaters Chillers • Internal Check Valve

• Internal Check Valve

Sturdy: Heavy duty design supports a total weight up to 330 lbs (including the weight of the unit itself and optional lighting systems)

apply every 7–14 days or after significant rainfall

Our Xtrasun High Pressure Sodium (HPS) + Metal Halide (MH) Dual Arc lamps offer the benefits of HPS and MH technology simultaneously within one lamp

the ergonomic design conforms to your body

23_1/4x29_1/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Water Heaters Chillers • Internal Check ValveNordic Pure Custom MERV 7 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