Custom Tank Fabrication Custom Tanks available for any size project. No size or project is too small or large for JP Plastics. Custom Anodizing Tank Custom PVC-Polypro Tank Large volume polypro holding tank Polypro constructed gravity plate settler (clarifier) Polypro portable custom tank Polypro tank with custom spray system Process tank with custom agitation Rectangular Tank with steel gurthing Small Rotationally MoldedPolypro tank