The PL-68 septic tank effluent outlet filter is perfect for improving the performance of your septic tank or wastewater treatment system. This product will reduce the solids exiting the septic tank into your drainage or percolation area, ensuring its long-term performance. If solids exit your septic tank or treatment plant, your percolation area or drainage field will clog, and partially treated sewage will most likely pool in your garden. This can contaminate any on-site water source and directly expose anyone in contact with this area to E. coli and fecal coliform infections. Ideal for flows of up to 3000 litres per day, the PL-68 is the perfect solution for most average residential application daily flows. Can be purchased with a gas deflector.