"Read More http://www.amazon.com/gp/product/B002EL40L8?tag=takingchances-21-20<br /><br />Hayward C17502S Star-Clear Plus 175-Square-Foot Cartridge Filter 2-Inch SKT Pipe<br /><br />Product Features <br />Single piece injection-molded base and body provides added strength for reliable corrosion-free performance<br />Single locking knob securely fastens head to filter tank eliminating bolts or clamps<br />Attractive durable filter head may be rotated to conveniently position pressure gauge and manual air relief<br />Extra-large cartridge element with New precision engineered extruded core provides extra strength and maximum flow"
