The Thetis is a high-flow exhaust valve for recreational and technical drysuit diving. Its lid is designed for use with heavy gloves. Choose the configuration that matches your suit: S11330 large guide ridge, S11333 large guide ridge with metal spring, or S11340 small guide ridge. Guide ridge options are not interchangeable mounting choices.
$105.00
SI TECH Thetis Exhaust Valve
- Low-profile drysuit exhaust valve with ratchet adjustment
- Choose the guide ridge and spring configuration
- Includes anti-friction washer
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| Configuration | Large guide ridge, Large guide ridge – metal spring, Small guide ridge |
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