Is your Pentair® Clean and Clear Plus® Pool Filter leaving your pool dirty, even after all of your cartridges are in good condition? Often times debris bypass the filter through a cracked or damaged portion of your Filter Manifold, and at that point your manifold will need to be replaced. These replacement Bottom Manifolds for the Pentair® Clean and Clear Plus® Filters are designed to directly replace your existing bottom manifold in order to secure the cartridges. These Bottom Manifold Replacements are compatible with Pentair® Clean and Clear Plus® Filters from before and after 12/2000, see below for unique filter specifications. Looking for the Top Manifold Replacement? Check out the Pentair® Clean and Clear Plus® Top Manifold Replacement. Looking for the O-Ring on the Outlet Elbow Pipe Assembly? Its the Outlet Elbow Pipe Assembly O-Ring (O-49). Compatibility • Part # 170040: Used for Pentair® Clean & Clear Plus® Filters made after December 2000 • Part # 170035: Used for Pentair® Clean & Clear Plus® Filters made before December 2000 (Pipe Assembly Included) • Replaces: 170040, 170035 Specifications • Manufacturer: Pentair Pool Products, Inc. • Model: 170040, 170035