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- Extends the height of HOLDRITE HydroFlame Pro Series sleeves by as much as 4-3/4 in 1/4” increments
- No coupling needed for connection to sleeves
- Ideal for use on concrete pours over 12”
- Available for all HOLDRITE HydroFlame Pro Series sleeve sizes
- Connects to safety caps, water dams, water modules and underside of sleeves
Unit of Measure
Nominal Penetrant Size |
N/A 2 1/2- 4 |
Material |
N/A Polypropylene |
Fits Firestop Sleeves |
N/A #4 Firestop Sleeves |
Fits Hollow Sleeves |
N/A #5 Hollow Sleeves |
Box Qty |
N/A 10 |
