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Apr 09, 2025 - 02:25 PM
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We’ve provided several answers to questions related to Heater Gasket O-Ring for Master Spas , see some other helpful Q&A related to this product.
Question: WHAT SIZE IS THE O RING, INNER DIMENTION AND OUTER DIMENTION
Answer: Master Spas replacement heater gasket has the following dimensions -
Width: 3 inch (7.62 cm) [circular diameter]
Height: .25 inch (0.635 cm)
Inside Diameter: 2.1667 inch (5.503418 cm)
Outside Diameter: 2.875 inch (7.3025 cm)
Question: What size is this?
Answer: Balboa and Master Spa only have one style heater gasket. X801765 is the heater gasket used in every Master Spa that currently exists. That being said, these are the dimensions listed - Inside Diameter: 2.1667 inch (5.503418 cm)
Outside Diameter: 2.875 inch (7.3025 cm)
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