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Northstar SP4000X Series
Pentair 072184 Flat Washer
2-Inch full-flow internal piping and plumbing for less resistance to flow and maximum performance
Plumbing: 1-1/2" Buttress External Threads (Approximately 2-7/16" actual outside diameter)
It features a revolutionary lock-ring design that mounts and seals like a vinyl inlet fitting fast
Hayward W3EC40C92S 20 Sq. Ft. Perflex D.E. Filter System with 1 HP Matrix Pump Northstar SP4000X SeriesHayward W3EC40C92S 20 Sq. Ft. Perflex D. E. Filter System with 1 HP Matrix Pump. Hayward Perflex D. E. filter system are performance matched with an above ground Matrix pump to ensure a system that maximized its filtration ability. This advanced filtration system is designed to operate with less resistance than conventional units, producing more filtered water with less pump horsepower. Quality, value, dependability and sparkling clear pool water are