Understand the relationship between Human Health and Agriculture, may it be Hydroponics or Soil Gardening clearly explained by the PlantDoctor himself: Deodath 'Slim' Ramjattan. on the CNC3 segment "Green Thumb Tuesday"
This chart displays the Universal chart of selecting the correct hole saw size to match your chosen Uniseal. N.B: the chosen Uniseal will match the selected PVC pipe, e.g. a 1" PVC pipe fits into a 1" Uniseal but uses a 1-3/4" hole saw.