These incredibly strong one-piece units feature an internal baffling system, support cones and a reinforced spillway. The 'inside the liner' design plus rear liner attachmet simplifies installation and eliminates leaking. The top can be covered with rock, gravel, soil or mulch to blend seamlessly with the surrounding landscape.
UPDATE: 2014 SP2600 and SP3800 have been discontinued. Limited quantites are available.
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