6X300 CLEAR CAL TUBE
6X300 CLEAR CAL TUBE
PL204006300FT-6
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$5.18
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π§Ύ Breaking it down:
- PL β Perma-Liner system product code
- 204006300 β internal specification series
- FT-6 β 6-inch pipe size application
- FT (300FT roll) β supplied in long continuous roll material
π§ What itβs used for:
This is not a plumbing fitting you install permanently. It is used during pipe lining rehabilitation, where:
- A resin-impregnated liner is inserted into an existing damaged pipe
- The calibration tube holds and shapes the liner
- It ensures the liner cures properly against the host pipe wall
- Prevents over-expansion or wrinkling during installation
ποΈ Typical applications:
- Sewer line rehabilitation
- Storm drain lining
- Commercial plumbing restoration
- Trenchless pipe repair systems (CIPP method)
βοΈ Key features:
- Reinforced polymer / PVC-coated fabric
- Designed for steam, hot water, or ambient curing processes
- Transparent or semi-clear for visual inspection during curing
- Used with inversion lining equipment
π§ Simple explanation:
Itβs basically a special temporary sleeve used inside old sewer pipes during trenchless repair to shape and hold a new pipe lining while it hardens.

6X300 CLEAR CAL TUBE
$5.18