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Reg. Price: $3.95
Our Price: $1.70
on orders of $45.00 or more.
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IST Silicone Exhaust Valve


  • Silicone exhaust valve with Ø1.9cm(0.75”). HxWxD is .5 inches
  • For the snorkels: SN1, SN20,SN26 & SN50.
  • Also for the following masks: M11 & M12.


Average Rating:
(based on {0} review{1})

Showing 1 - 5 of 6 Reviews:

by Kim
on 6/23/2021
from AZ
Fits perfect
As others have mentioned, it is silly to throw away a perfectly good snorkel just because the valve is worn. So thankful you guys had this and for reasonable price! It is for my old SeaQuest Side Draft and fits perfectly. I measured the old one first to make sure. Also, quick delivery and the company is very informative too!
by Garrick
on 3/3/2020
from Ohio
IST Silicone valve
Ordered 5 of these, size was not indicated when I ordered.  They are 8 mm too small for my exhaust valves.  I wish I new what size these were before I ordered.

Instructor Bill: To IST's defense these are for the following snorkels and masks:  For the snorkels: SN1, SN20,SN26 & SN50. Also for the following masks: M11 & M12
by dennis matsumura
on 11/9/2017
from austin texas
silicone exhaust valve
had a hard time finding a replacement locally all the dive shops said time to get a new mask. found this online with a reasonable price but wasn't offered free shipping so paid $5. and some change which seemed a little high for the size of item. easy to put in arrived quickly and works really well. 
by Joelle Rudenick Brown
on 8/6/2017
from Kirkland, WA
Exactly as ordered
Exactly what I ordered, fast shipping, adequate price.  Moreover, unavailable for the price anywhere online, surprisingly; amazon's cheapest vendor requested over $10 for the same product.  It should not cost that much to replace a small valve.  I really did not want to throw my son's snorkel because someone pulled the valve out. 
by G.A.Geane
on 8/2/2017
from CT
IST Silicone Exhaust Valve
Ordered this item to fix my mask, and it was shipped quickly and fit perfect. It took less then 30 seconds to fix.
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Other Items In This Category


Question asked
on 5/25/2016
Would this replacement valve fit us divers snorkel for juniors. It is a Regal junior model. Thank you.
Answer by wendy
on 5/30/2016
Hi, Thank you for your question. Your best bet is to contact US Divers and speak with one of their Technical staff. We are not sure if it would fit or not. We are not an authorized dealer of US Divers products. Sincerely, Wendy, Customer Service, 1-866-728-2293
Question asked
on 12/25/2016
Will this fit a body glove snorkel?
Answer by chris
on 12/27/2016
Hi, Thanks for your question. As long as the diameter is .75 inchs, and it is the same style,it should work. Thanks Divemaster Chris
Question asked
on 6/3/2019
will this work for full face snorkel mask?
Answer by Cizon
on 6/3/2019
Hello, It may work, but this for a snorkel. However, if you start replacing things that don't come with the mask originally you may void the warranty and put yourself into a dangerous position. Cizon, Customer Service
Question asked
on 7/17/2019
Is the IST Silicone Exhaust Valve comparable compatible with a Mares ergo splash snorkel?
Answer by Cizon
on 7/22/2019
Hi Craig, thank you for your question. This IST Exhaust Valve is made specifically for the IST snorkels SN1, SN20,SN26 & SN50 and for the IST masks M11 & M12. Happy Diving, Cizon, Customer Service
Question asked
on 8/11/2019
Hello, Will this valve fit the Head Sea Vu and Sport full face dry mask? Thanks for your help.
Answer by Bill
on 8/13/2019
Hello, this will not work on those. Thanks, Instructor Bill 1 866 728 2293
Question asked
on 8/24/2020
Hi can you tell me if this Exhaust Valve fits a Kraken FBA_KA301-BL swimmers snorkle? Thx!
Answer by Bill
on 8/24/2020
Hello, So we do not have the measurements of the Kraken product so cannot tell you if this works. Hope this helps, Instructor Bill 1 866 728 22893