3/8" x 1.5" Fender Washer used on the propulsion system in the swim spas. The 3/8" x 1.5" Fender Washer from Master Spa Parts has a thinner body compared to the flat washer and provides an even wider surface area of support for fasteners.
SpaBoss Prevent II is used to get rid of staining and scaling in your hot tub and prevents it from building up in the first place. This liquid is a concentrated and multi-purpose stain and scale treatment that is easy to add to any hot tub.