- Double Wall. Made from a single strip of .005 316-L Stainless Steel
- Total overall thickness .012
- Smooth wall on the inside increases the draft by 20%
- 100% leakproof, air tight and unbreakable lock
- All purpose for use on oil, wood and gas
- Tested and approved to UL-1777 Zero Clearance (Tested by Conran Inspections Inc.)
- Corrugated interlocked seamed on the outside to provide strength and flexibility
- Available in diameters from 3" to 12" and in 4 1/2", 5 1/2" & 6 1/2" diameters with lengths up to 50 feet

SIZE	I.D. SIZE	O.D. SIZE
3"	3"	3 3/8"
3"	4"	4 3/8"
4 1/2"	4 1/2"	5"
5"	5"	5 3/8"
6"	6"	6 1/4"
6 1/2"	6 1/2"	6 3/8"
7"	7"	7 3/8"
8"	8"	8 3/8"
9"	9"	9 3/8"
10"	10"	10 3/8"
12"	12"	12 3/8"
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