Silicone exhaust valve with 1.9cm(0.75 ). For the snorkels: SN1, SN20,SN26 & SN50. Also for the following masks: M11 & M12.
| Item Weight | 9.6 Ounces |
| Brand Name | IST |
| Material | Silicone |
| Manufacturer | IST |
| Part Number | P1-2 |
G**T
Worked Great!
Replaced a valve that ‘little fingers’ lost and it covers and works better!
