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Use with all Tempress Elite Helm Seats, or with any rotomolded style seat requiring support.
High density polyethylene reinforcement plate ensures bottom reinforement when installing only a standard 4-hole mount swivel base.
Hardware not included.
Fits: 56101, 56102, 56110, 57010, 57020, 57017, 57018, 57027, 57028, 57231, 57232, 57237, 57238 Elite Helm Seats.