We've updated your selection

      1 qt. Boiler Liquid

    Set your store for local inventory & pick up options.
    • Description
      Model
      30115
      Internet/Catalog:
      100147992
      Store SKU:
      654921

      HERCULES 1 qt. Boiler Liquid is used to seal and repair cracks and leaks that appear in steam and hot water systems. The odor-free formula creates a tough seal that expands and contracts with heat. NSF registered and USDA authorized.

      • Seals and repairs cracks and leaks in steam and hot water systems
      • Compatible with propylene glycol-based antifreezes, chemical additives and boiler treatment compounds
      • Will not clog hot water coils, controls, valves or vents
      • Resists high pressure and is not affected by boiler cleaners
      Info & Guides
    • Specifications
      Accessory type :
      Heating
      Heating Product Type :
      Accessory
      Heating Technology Type :
      Radiant
      Product Depth (in.) :
      3
      Product Height (in.) :
      9.0
      Product Weight (lb.) :
      2.39
      Product Width (in.) :
      3
      Returnable :
      90-Day
    • Reviews
      (14)

      Ratings & Reviews

      100% of customers recommend this product
      4.8
      Out of 5:
      5
      [11]
      4
      [3]
      3
      2
      1
      QUALITY:
      VALUE:
      4.8
      4.6
      • Works as advertised!
      • February 03, 2013
      • Recommended Product

      A week before heading out on vacation I discovered a leak in a pipe joint on my boiler. Not having enough time to get a plumber in to repair the problem I tried some plumbers putty and other temporary sealants to resolve the issue. Each of these seemed to slow the leak down, but did not completely stop the problem. With just a couple of days left I decided to give this product a try. I followed the instructions unscrewing the pressure releif valve and pouring the product into the boiler. After reinstalling the releif valve I fired up the boiler. I was stunned to see the leak completely stop within minutes. I held my breath as the boiler pressure rose as this is when the other products failed. No sign of the leak reappeared. I checked the boiler over the next two days and was happy to see that the boiler remained dry and the water level in the boiler remained intact. This is a wonderful product!

      Pros Easy to Use

      Howard

      Valley Stream, NY, USA
      55 to 64, Male
      8 out of 8 people found this helpful
      more details...
      By: Howard
    • Shipping & Delivery Options

      Shipping options for [zipcode] (change)

      Arrival dates and shipping costs shown above are estimates.See exact dates and costs and select your preferred shipping option during checkout.


      EXPRESS DELIVERY FROM STORE:

      Express Delivery from Store is available for items currently in stock at a The Home Depot store within a delivery ZIP code. A driver from a local store will deliver the item(s).


      Outside Delivery:  Service includes delivery to area outside the house which is accessible by delivery equipment.


      Threshold Delivery: Service includes delivery across your first doorway or threshold (ie. garage, backyard, deck, first room of the home).


    This item cannot be shipped to the following state(s): AK,GU,HI,PR,VI

    Find More Heater Accessories TAP TO FILTER