IST R20 Regulator R20 033492

Mfg Part #: R20
Scuba Lab Testers Choice!
  • Perfect Score - Scuba Lab!
  • 360-degree 1st stage swivel
  • Brass Heat Exchanger: reduces chance of freeze-ups
  • Balanced 1st stage


And the reviews are in:
"The R20 not only earned a perfect score, it was able to exceed 300 feet at the maximum breathing rate while maintaining a work of breathing of only 1.0 joule per liter - an outstanding achievement ..." -Scuba Diving


Customer Reviews for IST R20 Regulator:

See the top 20 most helpful scuba gear reviews

Average Customer Review: based on 1 reviews.

Rating: IST R-20
Reviewer: Martin C.  -  View all my reviews
Great regulator for the price. Earned scuba labs best pick award.

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381 out of 738 people found this review helpful.

Questions and Answers for IST R20 Regulator:

  • Lou:

    Buying a regulator for my Son....I used various over the years..But like the Genesis 2000 the best of any...The Son would like something different...thinks he would want the IST R20 or Aqualung titan....which would be the the one for him to get/use....

    Bob  (Certified Scuba Instructor at

    All manufacturers make a quality and safe to use regulator. For more details or product comparisons please contact our instructors at 800-34SCUBA or

  • noon:

    Hi, Im just wondering, does the IST R20 Regulator come with the 2 octopuses ( normal & emergency) the low pressure hose and the gages? or do we have to buy each piece separately? Also can we add an extra low pressure hose to a normal Reg to be used with drysuit or does it have to be a special Reg? Cheers

    Darrick  (Certified Scuba Instructor at

    Hello Noon, this only comes with the 1st stage and one of the 2nd stage. If you are looking for the 2nd (Octo) or the pressure gauge that would be sold as an add-on.

2 High pressure ports

4 low pressure ports

Comfortable black silicone mouth piece

Oval exhaust diaphragm creates a tight seal and easy breathing

Polymer resin 2nd stage reduces jaw discomfort by being lighter

High flow 2nd stage hose

Balanced first stage

Brass heat exchanger - specifically designed to prevent freezing

View all IST Regulators

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