Catalina Cylinders · PRODUCT GUIDECatalina Cylinders S63 Review
Sources checked · Unscored
Review
Source evidence is available, but no eligible numeric overall rating was verified. This product remains unscored.
How we calculate scores →About this gear
S63 is Catalina’s shorter alternative to the familiar S80 format. The official specification sheet gives 9.0 litres of water capacity and 63 cu ft air capacity in a 551 mm cylinder. Its 184.2 mm diameter matches S80, but its listed weight is lower at 12.2 kg.
Consider before buying
The product page ambiguously lists water capacity as “11.1, 9”; the manufacturer’s specification sheet identifies S63 as 9.0 litres. Its buoyancy reaches +1.8 lb empty. Check the valve and total rig rather than treating a shorter cylinder as a direct substitute for the larger supply.
Our take
DIVEIN favours S63’s shorter, lighter format but notes reduced versatility from the smaller capacity. That is useful unscored editorial evidence, not a numeric grade. Compare with S80 if the extra gas capacity is required and the longer body fits.
Specifications at a glance
- Equipment type
- Scuba cylinder
- Water / air capacity
- 9.0 L / 63 cu ft
- Service pressure
- 3000 psi / 207 bar
- Diameter × cylinder length
- 184.2 × 551 mm
- Cylinder weight
- 12.2 kg
- Buoyancy: full / 500 psi / empty
- -2.8 / 0.7 / 1.8 lb
Compare an alternative
A closer look at S63
Editorial profile written
Facts listed by the source
- Listed weight
- N/A
- Listed dimensions
- N/A
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 cylinder, valve and connection specifications apply to this exact item?
- Will your local fill and inspection provider accept this configuration?
- What documentation and service history are available?
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.
The S63 section favours its shorter, lighter format compared with S80, while noting reduced versatility from the smaller capacity. It provides no overall numeric rating. Current manufacturer dimensions and weight are used for our specifications.
Source and scoring details
Exact S63 section, not the adjacent S80 review or the guide as a whole.
Guide contains affiliate shopping links. Testing claims belong to the publisher, not this site.
Original review: DIVEIN
SCUBA cylinder specification sheet — S63 row ↗
The S63 row identifies 9.0 litres of water capacity, resolving the product page’s ambiguous “11.1, 9” entry. This is a manufacturer specification, not an independent review or performance score.
Source and scoring details
Exact S63 row in revision 4/19; cross-checked against the current S63 dimensions and weight.
Manufacturer technical document; no independent rating.
Original review: Catalina Cylinders
