| Trade Size | Outside Diameter | Thickness | Length | |
| MM | Min(MM) | Max(MM) | MM | MM |
| 20 | 19.70 | 20 | 1.40 | 3750 |
| 25 | 24.60 | 25 | 1.40 | 3750 |
| 32 | 31.60 | 32 | 1.40 | 3750 |
| 40 | 39.60 | 40 | 1.40 | 3750 |
| 50 | 49.50 | 50 | 1.40 | 3750 |
BS 4568 Galvanized Steel Tube Galvanized Conduit 20MM
BS 4568 Class 3 Conduit refers to a type of electrical conduit that complies with British Standard BS 4568, which specifies the requirements for steel conduit systems used in electrical installations.
Standard: BS4568-1970
Material: Pre – Galvanized Steel
Thickness: 1.4mm
Length: 3750mm
Use:
* Electrical industry
* Mechanical industry
* Testing center
* Quality control personnel
* Electrical equipment installers/manufacturers
* Cable industry
