Hydro-test Products, INC.
85 Hudson Rd, Stow, MA 01775
Operating signal within 12 months from two or more independent sources.
What they make
All Other Miscellaneous Manufacturing339999Hydro-Test Products manufactures cylinder testing equipment, as well as equipment for filling and re-qualification of cylinders. The company makes pressure gauges, calibrated cylinders, scales, measurement tools, and pumps for testing fire extinguishers and fire hoses. It serves: are pressure, welding, SCUBA, fire extinguishers, fire departments, and oxygen refuser’ the U.S. Department of Transportation and Tra
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Products
Where these came from
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Mach Machine INC | Hudson | Precision Turned Product Manufacturing 332721 | ACTIVE | 4.8 KM |
| Tiger Presentations LLC | Hudson | Audio and Video Equipment Manufacturing 334310 | ACTIVE | 5.2 KM |
| Lincoln Tool & Machine CORP | Hudson | Machine Shops 332710 | ACTIVE | 5.4 KM |
| Walton Chase Elastomers INC | Hudson | Synthetic Rubber Manufacturing 325212 | UNVERIFIED | 5.4 KM |
| Fastenerz.com, INC | Marlborough | Bolt, Nut, Screw, Rivet, and Washer Manufacturing 332722 | ACTIVE | 6.5 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 8 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| SAM GOV | OPERATING | MAR 2026 | SEP 2026 |
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | SAM GOV | — |
| CAGE CODE | SAM GOV | — |
| CITY | SAM GOV | — |
| GEOM | CENSUS GEOCODER | JUL 2026 |
| NAME | SAM GOV | — |
| REGISTRATION EXPIRATION | SAM GOV | — |
| STATE | SAM GOV | — |
| WEBSITE | SAM GOV | — |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.