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The Holdrite HFPE3 Hydroflame Pro Series Extension Sleeve is designed for #3 fire stop sleeves used with metal or plastic pipes, and #4 hollow sleeves. It extends the height of HydroFlame Pro Series sleeves in 1/4-in increments. Ideal for concrete pours over 12 inches. No coupling is needed for sleeve connection.
This extension sleeve connects to safety caps, water dams, water modules, and the underside of sleeves, offering a versatile solution for firestop systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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