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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