The Balboa Gasket 30-3811SX is ideal for applications such as Softubs wall fittings. The section of this gasket measures 1/2 inch and its outside is 3-1/2 inches. This is the perfect fit for your Softub setup. Its high-quality silicone design ensures a durable and reliable seal, while its ribbed design bites into the liner to ensure a water-tight seal.

For best results, apply a small amount of silicone grease to the gasket before installation. This will allow it to slide onto the liner more easily, while also creating a tighter seal when tightened. Additionally, using silicone grease is important as it prevents the gasket from becoming ‘gummy’ with regular use.

• Part Type - Gasket
• Cross Section - 1/2"
• Outside Diameter - 3-1/2"od

Fitment guidelines:
For use with Softub Wall Fitting

Additional information:
Alternate Part Number - 90-110-1000