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.
These 52” pivot arms allow for your Ultralift Undermount to be used with a selection of swim spas. This accessory is a great option if you own a swim spa and want to use the Undermount as your cover lifter.