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HydroFlame™ Pro Water Module

The HydroFlame Pro Water Module provides additional water protection for HoldRite HydroFlame Pro Series sleeves and prevents debris from falling into annular space around piping. Use of a water module is fully optional and is not required to obtain a W rating. The mid-body seal in standard HydroFlame Pro Series sleeves already provides a UL W rating (refer to UL System data for specific sizing requirements). 

Key features: 

  • Pre-installed prior to concrete pour 
  • Available for all HoldRite HydroFlame Pro Series Sleeve sizes 
  • Adds ½ inch to the overall height of HydroFlame Pro Series sleeves 
  • Secures to safety cap and other HydroFlame Pro Series accessories 
  • UL W-rated seal, watertight for most penetrants. Refer to UL System data for specific size requirements 
Where to Buy
SKU Fits Firestop Sleeves Fits Hollow Sleeves Pipe Size
HFPWM1 #1 Firestop Sleeve #2 Hollow Sleeve 1/2–1 in.
HFPWM2 #2 Firestop Sleeve #3 Hollow Sleeve 1-1/4 –2 in.
HFPWM3 #3 Firestop Sleeve #4 Hollow Sleeve 2–3 in.
HFPWM4 #4 Firestop Sleeve #5 Hollow Sleeve 3–4 in.
HFPWM6 #6 Firestop Sleeve #7 Hollow Sleeve 5–6 in.
More Details

Common Applications

  • Water Protection

Approvals & Listings

  • UL Listed, W-Rated accessory

UL Ratings

Type UL Rating Status
Water W
* W-Rating, refer to UL System data for specific sizing requirement

UL W-rated seal that provides a water, smoke and debris stop. 


Designed to work with HoldRite HydroFlame Pro Series firestop sleeves. 

Easy Install

Secures to safety cap and other HydroFlame Pro Series accessories. 

cUL Listed
fbc compatible
Buy american act logo
made in usa icon - rwc

“FBC™ System Compatible indicates that this product has been tested, and is monitored on an ongoing basis, to assure its chemical compatibility with FlowGuard Gold®, BlazeMaster® and Corzan® piping systems and products made with TempRite® Technology.” “The FBC System Compatible Logo, FBC™, FlowGuard Gold®, BlazeMaster®, Corzan®, and TempRite® are trademarks of Lubrizol Advanced Materials, Inc. or its affiliates.”