Sta Rite S7M120 Posi-Flo cartridge design to make system 3 technology possible and Ultra Capacity Filtration a reality. System 3 Modular Media brings a whole new class of filtration to the pool and spa industry. By incorporating the very latest in media science, perfectly balanced flow and an integral manifold design, System 3 filtration puts totally carefree operation within reach of today's pool owner.SM Series FiltersWith System:3® Modular Media Filters - SM Series, Sta-Rite brings you the product that makes Ultra-Capacity Filtration™ a reality. No longer simply "cartridges," Sta-Rite's advanced technology has brought an entirely new class of filtration to the industry. Sta-Rite's modular media concept incorporates the latest in media science, perfectly balanced flow, and an integral manifold design: namely, Ultra-Capacity Filtration. This filtration concept puts totally care-free operation within reach of today's pool owners. Modular Filter Tanks allows for quick change of filter medias without changing the tank. Contemporary style and matte black finish looks attractive in any pool settingAn Eco Select™ Brand: Water flows very efficiently through System:3® Modular Media Filters - SM Series filters allowing the use of smaller pumps or lower pump speeds to minimize energy use. And when consumers rinse cartridges rather than backwash, they can significantly reduce water use, too.FeaturesTypical Installation – Inground pools, inground hot tubs, and water featuresQuality Construction – Durable two-piece tank housing constructed of Dura-Glas™, Sta-Rite's industry leading glass-reinforced composite resinSafe – Posi-Lok™ clamps provide safe, easy access to tank internalsPatented Design – The patented, innovative balanced flow design first introduced with the System:3 Mod Media is still the standard of the industry. Protected by U.S. Patent Numbers 5,190,651 and 6,036,853Low Maintenance – Complete media coverage combined with shallow pleats means greater dirt holding capabilities, resulting in longer filter cycles and less cleaningQuick Service – The shallow pleat design allows you to simply hose off the elements in a matter of minutes, making servicing a snapDual Drain Plugs – Side plug available for plumbing to waste, while the bottom plug will drain entire filter1 year manufactures warrantyProduct SpecificationsSYSTEM: 3 MODULAR MEDIA FILTER - SM SERIESTurnover Capacity (In Gallons) (Flow Rate x 60 x Hours)Product Filter Area (Sq Ft) Flow Rated 1 GPM (Sq Ft) 6 Hour 8 Hour 10 hour Tank Port Size Carton Wt (Lbs)S7M120 300 50 - 100 18 - 36,000 24 - 48,000 30 - 60,000 2 in. 120S7M400 400 50 - 115 18 - 41,000 24 - 55,000 30 - 69,000 2 in. 125S8M150 450 50 - 124 18 - 45,000 24 - 60,000 30 - 74,000 2 in. 147S8M500 500 50 - 130 18 - 46,000 24 - 62,400 30 - 78,000 2 in. 1501: Based on NSF rated flow range of 0.333 GPM per square foot for the S7M120. 0.288 GPM per square foot for the S7M400, 0.275 GPM for the S8M150 and 0.26 GPM per square foot for the S8M500