Highland In-line Shut Off Valve HL404 034149

Mfg Part #: HL404
  • Perfect for technical divers who use decompression bottles, stage bottles, or other bottles where gas loss would be a serious complication for safety.
  • Easily installed on any second stage regulator

Customer Reviews for Highland In-line Shut Off Valve:

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Average Customer Review: based on 2 reviews.

Rating: Shut off
Reviewer: Wesley L B.  -  View all my reviews
Works great

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1162 out of 1343 people found this review helpful.

Rating: Great mask!
Reviewer: Doug P.  -  View all my reviews
No leaks, big FOV, and a world-class buckling system. A+

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192 out of 409 people found this review helpful.

Questions and Answers for Highland In-line Shut Off Valve:

  • Kevin:

    Is there any toque / maintenance requirements? Is there a tech / maintenance manual?

    Arthur  (Certified Scuba Instructor at Scuba.com):

    there isn''t a torque spec on this you just want it snug enough that it won''t come loose. This is a static O-ring to torque isn''t an issue.

Inline Shut-Off
at Second Stage

Install between standard regulator hose and second stage
9/16-18 UNF male inlet to 9/16-18 UNF female outlet threads
Slide machined Delrin collar to shut off gas flow
Prevent critical gas loss
Commonly used with deco rigs, stage bottles & drysuit inflation
Low pressure use only - below 200 psi
P/N HL404

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