The replacement Filter Tube is part of the 2-Stage Pre-Sediment Filter Kit found on all Non-Electric and 12VDC Envirolet® models and on some 120VAC Envirolet® models. It filters for solids before excess liquid drains from the Envirolet®.
Filter Tube should be cleaned or replaced regularily (once a year minimum) to prevent drain clockage.
Specifications:
Includes Filter Tube, with Filter Cloth, only.
Note on Drain Size:
• Systems from after 2007: 1/2"
• Systems prior to 2007: 3/8"