Minimum Strength Cartridge Filter Our minimum blend formulation comes in at a rating of 2.5 on our scale. This filter “blend” is perfect for those runs that need a minimum touch up, as the name. 👊 Basic Strength Cartridge Filter Our basic blend formulation comes in at a rating of 3.5 on our scale. This filter “blend” is perfect for those runs needing a baseline for examination. Basically, this is where you should start if you are working with new biomass/material. 🤙 Classic Strength Cartridge Filter Our Classic blend formulation comes in at a rating of 4.5 on our scale, this is a stronger filter “blend” perfect for that same ole' classic material you have ran before.😉 Advanced Strength Cartridge Filter Our Advanced blend formulation comes in at a rating of 5.5 on our scale, when you have stubborn biomass enter the building, this is the filter “blend” you want to use. 👏 Maximum Strength Cartridge Filter Our Maximum blend formulation comes in at a rating of 6.5 on our scale, when you're worried about how the runs gonna go... this is the filter “blend” you use . 🤓