System 3 Modular Media Filter SM Series

With the System 3 Modular Media Filter, 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 media without changing the tank. Contemporary style and matte black finish look attractive in any pool setting.

Featured Highlights

Typical Installation – Inground pools, inground hot tubs, and water features
Quality Construction – Durable two-piece tank housing constructed of Dura-Glas™, Sta-Rite’s industry leading glass reinforced composite resin
Innovative Design – The innovative balanced flow design first introduced with the System 3 Mod Media is still the standard of the industry
Low Maintenance – Complete media coverage combined with shallow pleats means greater dirt holding capabilities, resulting in longer filter cycles and less cleaning
Quick Service – The shallow pleat design allows you to simply hose off the elements in a matter of minutes, making servicing a snap
Dual Drain Plugs – Side plug available for plumbing to waste, while the bottom plug will drain entire filter

Ordering Information - 1

Product Effective Filter
Area (Sq. Ft.)
Flow Rated ¹ GPM
(Sq. Ft.)
Turnover Capacity (In Gallons)
(Flow Rate x 60 x Hours)
Tank Port
Wt. (Lbs.)
6 Hour 8 Hour 10 Hour
S7M120 300 50–100 18–36,000 24–48,000 30–60,000 2 in. 120
S7M400 ¹ 400 50–115 18–41,000 24–55,000 30–69,000 2 in. 125
S8M150 ¹ 450 50–124 18–45,000 24–60,000 30–74,000 2 in. 147
S8M500 ¹ 500 50–130 18–46,000 24–62,400 30–78,000 2 in. 150


¹ Based on NSF rated flow range of .333 GPM per square foot for the S7M120.
.288 GPM per square foot for the S7M400, .275 GPM for the S8M150 and .26 GPM per square foot for the S8M500.
No backwash valve required.
Operating Limits – maximum continual operating pressure of 50 PSI. Pool/spa (bather) applications, maximum operating water temperature (internal filter) 104°F (40°C).

WARNING: Cancer and Reproductive Harm.
AVERTISSEMENT: Peut Causer le Cancer et des Dommages au Système Reproducteur.
ADVERTENCIA: Cáncer y Daño Reproductivo.

Ordering Information - 2

Product Description Carton
Wt. (Lbs.)
PKG 188 Union x 2 in. Slip Adapter - Pkg. of 2 1
PKG 189 Union x 2 in. FPT Adapter - Pkg. of 2 1
77703-0100 Union x 1-1/2 in. FPT Adapter - Pkg. of 2 1
77703-0101 Union x 1-1/2 in. Slip Adapter - Pkg. of 2 1
25021-0200S 100 sq. ft. Inner Replacement Module for S7M120 9
25022-0201S 200 sq. ft. Outer Replacement Module for S7M120 21
25021-0223S 136 sq. ft. Inner Replacement Module for S7M400 11
25022-0224S 264 sq. ft. Outer Replacement Module for S7M400 24
25021-0202S 191 sq. ft. Inner Replacement Module for S8M150 18
25022-0203S 259 sq. ft. Outer Replacement Module for S8M150 27
25021-0224S 209 sq. ft. Inner Replacement Module for S8M500 19
25022-0225S 291 sq. ft. Outer Replacement Module for S8M500 28
25021-0021 Modular Media Conversion Kit - S7M120/S7M400 (Order Modules Separately) 4
25021-0025 Modular Media Conversion Kit - S8M150/S8M500 (Order Modules Separately) 5

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