Zeagle · PRODUCT GUIDEZeagle Onyx II Regulator Review
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Review
Source evidence is available, but no eligible numeric overall rating was verified. This product remains unscored.
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The Onyx II combines a balanced first stage with a dry environmental seal and a compact second stage with an inhalation adjustment. Five low-pressure and two high-pressure ports provide routing options, while the 30-inch braided hose and aluminium heat sink are part of the specified package. DIN and yoke versions are offered.
Consider before buying
The adjustment knob is the practical distinction to assess against the simpler Envoy II. Check its reach with your gloves and confirm servicing support for the selected connection and configuration. An environmental seal does not establish the approved temperature range or gas compatibility by itself.
Our take
The Onyx II is a sensible comparison with the F8 when both have good local service support. DIVER’s June 2021 test praised its comfort and hose routing while paired with an Envoy octopus. ScubaLab’s earlier test found a sensitive purge and some inhalation noise. Try the controls and mouthpiece before paying more for another model; neither report supplies a numerical overall grade.
Specifications at a glance
- Equipment type
- Regulator set
- First stage
- Balanced; dry environmental seal
- Ports
- 5 LP; 2 HP
- Second-stage controls
- Venturi lever and inhalation adjustment
- Hose
- 30 in / 0.76 m braided
- Connection
- DIN or yoke
Compare an alternative
A closer look at Onyx II Regulator
Editorial profile written
Facts listed by the source
- SKU
- 350-03X0
Options in a listing may refer to different variants. Confirm the exact version and package before ordering.
Questions to settle before buying
Based on the equipment type in the researched profile.
- Which first stage, second stage and hoses are included in this configuration?
- Does the connection match your intended cylinder valve?
- Who can service this exact model locally, and what does the manufacturer require?
Explore the related equipment section →
What still needs checking
Independent review coverage and model updates still need ongoing research.
Published review evidence is available further down this page; only eligible overall ratings contribute to its score.
Where this research comes from
Read the source ↗ · Open the product listing ↗
Exact product name and URL in manufacturer feed · cached source, collected 2026-10-02 · Catalogue audit 2026-10-02.
Source matching and feature extraction are automated. An editorial profile, independent review and hands-on test are separate things; none is implied by this audit.
Review evidence and source documents
Published findings and supporting documents, with each source identified below. We have not personally tested this product.
20 Scuba Diving Regulators Reviewed By ScubaLab ↗
ScubaLab found steady breathing and effective adjustment, while some testers reported a sensitive purge and inhalation noise. It supplies category findings rather than an overall numerical rating.
Source and scoring details
Exact model has a named section. Historical 2017 test, not a new test of current production.
Commercial relationship not established; see the original publication.
Original review: Scuba Diving / ScubaLab
The Onyx II performed well in Warren’s sharing exercise with an Envoy II octopus. He liked comfort and hose routing. The article is a qualitative assessment of that combination, with no numerical overall grade.
Source and scoring details
Exact Onyx II primary; paired Envoy octopus findings do not establish results for the complete Envoy regulator. Issue month is recorded in the title; exact publication day is not established.
Publication includes advertising or commercial links; specific supply arrangements not established.
Original review: DIVER / Divernet
