In Stock Free delivery overnight with DPD. Features & benefits of the PL-122 Septic Tank Effluent Filter: Fits 110mm or 4″ schedule 40 outlet pipe Supplied with 100mm handle extension 1.6mm filtration slots 5700 litres per day, maximum daily flow Lightweight and easy to install shut off ball to prevent solids passing when cartridge removed for cleaning Optional high level floatswitch available