10x10x1 Pleated MERV 7 Air Filters 24 Pack light-movers-hangers The 25u offers smaller holes

The 25u offers smaller holes and gives you a more filtered and refined product where the 150u has larger holes that allows material to pass through easier and can potentially provide slightly higher yields

You can learn more about Cokin filter holders on the Cokin website

This durable and high quality 10""

It doesn’t mask them—it neutralizes them

10x10x1 Pleated MERV 7 Air Filters 24 Pack light-movers-hangers The 25u offers smaller holesNordic Pure MERV 7 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters