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Since filter sizes can vary for the same spa model depending on year and features
Designed for Coast Spas Aura series hot tubs
Durable UV and chemical resistant thermoplastic construction
while the large 2L debris container reduces emptying frequency
Top: 4" open with molded gasket
Calibration Kit for ICO Probe Apex cover Since filter sizes can varyCalibration kit for ICO smart spa water monitoring probes. Keeps your ICO sensor reading accurately by calibrating pH and other key water chemistry parameters. Regular calibration ensures precise measurements so you dose chemicals correctly every time, protecting equipment and bather comfort. Includes calibration solutions for the ICO probe system. Designed specifically for the ICO smart hot tub monitoring device compatible with all ICO probe
