Hydrostatic testing for a wide range of high-pressure cylinders.
805 Hydro Testing supports recreational, fire and safety, aviation, paintball, industrial, oxygen, and storage cylinder categories. Eligibility varies by markings, condition, manufacturer requirements, and cylinder type.
Real cylinder types, organized by customer need.

Scuba & Dive Cylinders
Steel and aluminum scuba cylinders for recreational divers, dive shops, instructors, and programs.
Request Scuba Testing
Oxygen Cylinders
High-pressure oxygen cylinders used for emergency oxygen, support kits, and specialty oxygen storage.
Request Oxygen Testing
Aircraft Oxygen Tanks
Aviation oxygen cylinders for aircraft support operations and aircraft oxygen system service needs.
Request Aircraft Oxygen Testing
Nitrogen Tanks
Nitrogen cylinders for industrial, commercial, technical, and specialty high-pressure applications.
Request Nitrogen Testing
Paintball HPA Tanks
Paintball air tanks including aluminum and carbon fiber high-pressure air cylinders.
Request Paintball Testing
SCBA Tanks
SCBA and breathing-air cylinders for safety, rescue, industrial, and emergency response use.
Request SCBA Testing
Storage Tanks / K Bottles
Large storage cylinders including K bottle size tanks and similar high-pressure storage cylinders.
Request Storage Tank Testing
Steel, Aluminum & Carbon Fiber
Testing support for common cylinder materials depending on markings, age, condition, and service requirements.
Request Material ReviewHow the testing request process works.
Start Service
Use the SCDiving service system with 805 Hydro Testing selected, then provide the cylinder type, quantity, and markings.
Review Eligibility
Tank markings, condition, manufacturer requirements, and cylinder type help determine the next step.
Hydrostatic Test
Cylinders are processed according to the service requirements for that cylinder category.
Pickup & Follow-Up
We contact you when service is complete or if additional information is needed. Approximately one week is quoted, subject to volume.
Help us identify your tank quickly.
- Tank type and intended use
- Material: steel, aluminum, carbon fiber, or unknown
- Quantity of cylinders
- Last hydro date or stamped markings
- Valve installed or removed
- Photos of shoulder markings and labels when available
Not sure what type of tank you have?
Use the form to describe the cylinder and attach or reference the stamped markings when available.