The Aster laminated 30” and 36” filters by ASTRALPOOL are 100% non-corrosive all fiberglass construction with a smooth gel coat exterior . This design eliminates fiberglass “splintering” found at the surface, providing a fresh new look that will last for many years. A unique, patented lid system has been incorporated to allow for tool free removal which eliminates traditional nut and bolt style lids. ASTRALPOOL patented 360° laterals are constructed of polypropylene for a long life and exceptional flow. The filters are rated at a 50 PSI working pressure. Product line includes: 2” connections on 30” filters and 2" or 2½" on 36" filters. Slip adaptors are provided for multiple manifold systems. 30” and 36” laminated series filters are NSF listed and carry a 10-year limited warranty. Note: All Multiport valves and Manifold Systems are sold separately.