Watts-SF-40 Watts String Wound Cartridge Standard 40" in R-Can Sterilight (S740RL-HO) UV Replacement Lamp Bulb for SP740-HO Engineered by Global Water to

Engineered by Global Water to match G4CT specifications for flow rate

Compatible with systems requiring WQCSC11

This slow dissolving poly phosphate media is suitable for use in dedicated phosphate feeder tanks

🔧 Pro Tip: Activated alumina performs best in a pH range of 5

Dual resin ion exchange

Watts-SF-40 Watts String Wound Cartridge Standard 40" in R-Can Sterilight (S740RL-HO) UV Replacement Lamp Bulb for SP740-HO Engineered by Global Water toWatts Premium Filtration Watts SF 40 String Wound Sediment Cartridge 40 Inch Industrial length polypropylene string wound filter for whole house and commercial applications requiring extended sediment capacity 100% Polypropylene Food Grade 40" Length WHY IT WORKS String wound construction for heavy sediment loads Precision Wound Design Polypropylene string wound tightly around a core creates gradient density filtrationouter layers catch larger