The Harvest More? TrimBin Replacement Screens are stainless steel and a replacement option for the Harvest More? TrimBin. Collect pollen while using the TrimBin with our innovative screens. Replace your original 150 micron screen or if you want to get more pollen, try the 220 micron screen! Each screen comes with hardware so you can easily mount your new screen. Screens are made of stainless mesh with a plastic-coated aluminum frame.