C-Series Complete Well System Filter Size:2.0 cu ft · 6+ Baths (15 GPM) The SW-4 Pentek Spanner Wrench

The SW-4 Pentek Spanner Wrench is engineered to fit snugly around the 20" Big Blue filter housing

ensure the assembly mounts squarely and the cam indexes correctly with the valve's positions so the cycle timing is accurate

enabling a hassle-free maintenance routine that keeps your water treatment system running reliably for years

Trusted by water softener and filtration system professionals for consistent performance

Maintains consistent flow rates

C-Series Complete Well System Filter Size:2.0 cu ft · 6+ Baths (15 GPM) The SW-4 Pentek Spanner WrenchC Series Complete Well System a complete two stage C Series system: air injection iron & sulfur filter followed by a water softener, each on its own genuine C Series automatic control valve. One price covers the entire staged build, shipped free not a single component. Everything included both complete stages Stage 1 Air Injection Iron & Sulfur Filter: genuine C Series air injection control valve, its own FRP filter cylinder, and a full load of