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SNK 520 adult Snorkelling Mask

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Snorkel with valve for your 1st dives to explore a few metres below the water’s surface.

A snorkel with valve to easily remove water, it also has a flexible hose for improved positioning around the face with the mask on.

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Sale price: Dhs. 59.00

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Product Features

A photo of the SNK 520 adult Snorkelling Mask in use

Water drainage

Snorkel purge valve facilitates water expulsion and minimises leftover water.


Wave guard limiting water entry from the top of the snorkel in rough seas

Mouth comfort

Orthodontic silicone mouthpiece for maximum comfort.

Anatomic design

Flexible tip for better positioning on the face and in the mouth.

Easy breathing

The snorkel's volume is adapted to the adult user's morphology.

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Product Reviews

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628 reviews

SNK 520 adult Snorkelling Mask
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No Shoe Laces?

Just bought two of these snorkels as well as two masks and two pairs of flippers. Imagine our surprise/shock when we unwrapped them at home, to find that the mask to snorkel to attachment clip is an extra, to be purchased separately. I cannot find any mention of this fact in the technical details. Had we just packed them away for out coming holiday's it would have been a big disappointment. I have bought several sets over the years from various manufacturers and never had an issue. For me this is a daft as buying a pair of shoes only to find out that the laces are an extra. If the omission can be justified by costing, there should be a clear notification that the clip needs to be purchased.

Good quality and robust

Snorkel just felt good quality.

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Pretty good piece of kit.

The valve worked fine (they can leak if badly made), and the kids loved that when you blow through it jets the water sideways.... Good shape, comfortable mouthpiece, good visibility for the end of the tube. Good piece of kit

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Good but would be better if it had a hook

For 2019 the snorkels don’t have a hook to attach to the mask strap. Yes you can slip the snorkel through the loop in the strap. But it is nowhere near secured as well as when there was a simple hook attached.

Not great as it fills with water easily

Not great as it fills with water easily In choppy water.

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Leaks Water

I used this for approximately 2 months. Then it started to leak water.

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Hi Victoria,

Thank you for your feedback :) Apologies that you were not fully satisfied with our quality.

Victoria, could you please elaborate on how the product did not fulfill your needs/requirements? It will help me understand what we can fix and how we can provide a better product next time. Additionally, we would request you to please bring back the product to the store so our team can check it. If it's a genuine manufacturing defect, we can exchange/return the same for you.

Hope this helps!



​Commercial Director & Buyer - Water Sports 

Great snorkel! But..

I have been very satisfied, good quality snorkel. Haven’t yet used during the wavy water. Works perfectly on the calm open water. Only issue is, does not have any ring/ hook to attach a mask. Had to go to a dive shop to buy a rubber dibble o ring in order to fix it on my mask. Such a simple thing but a major blow! Would have given 5 starts otherwise..

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Hello Vladimir,

Thank you for supporting Decathlon Hong Kong and your feedback on your experience with our product.

We sincerely appreciate your insight because it helps us build a better product offer.

*The rubber dibble o ring will be arrive on the middle of MAY.*

If you have any more questions, comments, or concerns or compliments, please feel welcome to reach back out as we would be more than happy to share and assist.

Stay healthy and safe dive!


Eric Cheung 

Decathlon Hong Kong Diving Team

King chun



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very poor quality

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Hello Beena.

Thank you for rating the 8491471 - Adult Snorkeling SNK 520 - Turquoise. Your feedback is important for us to improve our products year after year.

I apologize for the bad experience that you have faced with the Snorkel. Ideally, all our products have 2 years warranty, which means that we stand by the quality of our products. We have a quality check on our costumes before sending them to the stores.

However, I see that you are not happy with the quality of the snorkel. For this, I invite you to any of our Decathlon stores to have the Product exchanged for a product that best suits your requirement. Our sales advisors will be happy to help you out with the same.

I stay available in case you have any other queries. Have a good day.




Good quality

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Basic snorkel

It is good for beginners, but water was coming inside sometimes. Good to use in areas with very less/negligible waves... where water is calm

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Not up to the mark

It dosent have a grip had to use a rubber band to use it with snorkeling mask...even water valve dosent work properly

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Hello Archana,

Thank you for reviewing the product 8544771 - Adult Snorkel SNK 520 - Storm Grey, your feedback is important in improving the quality of our products and services.

We sincerely apologize for the inconvenience caused due to our Snorkel. We at Decathlon emphasis more on quality of the products at any given point of time for the right usage, so we do quality check for our product at different level right from designing to production. For any snorkel to have a amazing experience it needs to be clamped to the mask strap only then it would give 100% grip, in case if these snorkels are used with any other brand mask with no snorkel holder to it you can pick the snorkel clips available at stores and online. so we would recommend you to visit the nearest decathlon outlet and our sport leader would be happy to assist you with the same.

We would remain available for any further queries.




Used for snorkeling.

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Defect in valve

When I tried using for the first time, the one way valve near the mouth piece has leakage and water enters the snorkel tube.The item is useless for the purpose I purchased.

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Hello Sir,

Thank you for your feedback on our Snorkel 120 model. Ideally, any water in the snorkel is easily expelled through the valve- it is the winning point of this product. During snorkeling, there will always be some water that enter from the top, but you need to blow air through the mouth pieve in order to expel the water. If you are facing an issue, it is a one-off case. I welcome you to come to any Decathlon store to exchange/refund it for another snorkel or to understand the problem better with the sport leader in the store.
Kanika Nagia
Country Sport Leader | Snorkeling and Diving
Decathlon Sports India Pvt. Ltd.
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Additional Product informations



  • 100% Polypropylene


  • 100% Polycarbonate


  • 50% Silicon
  • 50% Polycarbonate

Tube connector

  • 100% Silicon


When Snorkelling, water can enter the snorkel due to immersion or splashing. The valve located at the bottom of the snorkel makes it easier to expel water. Thanks to the valve, most of the water is drained from the bottom, which means the user does not have to blow out so hard. This is unlike a conventional snorkel where the water is drained from the top.

How to use the valve

Simply blow out gently to empty the snorkel through the valve. After breathing out, be careful when you breathe back in. Inhale slowly as some residual water can remain in the snorkel. If in doubt, do not panic; raise your head out of the water and the snorkel will empty itself instantly through the valve.High-speed intensive swimming is not recommended as it can move the valve and cause water to enter.

Valve maintenance

Sometimes sand or salt gets stuck between the valve and the hard part of the snorkel, this prevents the valve from correctly lying flat and ensuring a watertight seal. In this case, simply rinse the snorkel thoroughly with clean water and check that the valve lies flat.

Breathe easily

With its comfortable mouthpiece and the correct size of the snorkel, you can breathe safely.


Silicone is an extremely flexible material. The silicone mouthpiece provides increased mouth comfort.

0% pvc

This product contains no PVC.


The mouthpiece is the part of the snorkel that is placed in the mouth. Its specially designed shape makes it one of the most comfortable snorkels for your mouth.

Wave guard

The deflector is the part located at the top of the snorkel. Its curved shape creates a protection limiting the inflow of water through the top of the snorkel.


Snorkel certified compliant with safety requirements according to European EN 1972 standards. Certified by the INPP (French professional diving institute).

Dimensions of the snorkel

Length: 40 cm.Thickness: 3 cm.

Weight of the snorkel

120 grams.

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