Skip to content

Hubbell Hot Box



The Hubbell Hot Box backflow enclosure is designed with a easy maintenance access with a flip top lid. It is weatherproof and vandalism resistance with a overlapping lid seam design that helps keep vandals and mother nature out. It also includes a lockable top and steel anchors (padlocks are not included).

It is made of durable and corrosion resistant reinforced fiberglass. It has a smooth UV resistant gelcoat that provides a corrosion proof finish that both looks good and stands up to the elements.

It’s superior freeze protection comes from the wall-mounted heater or self-regulating heat trace tape.

- Size: 11W X 19L X 22H
- Weight: 30 LBS


  • Series: Fiberglass Flip Top (Original)
  • ASSE Classification: Class I (Freeze Protection)
  • Industry Standard:  ASSE 1060 Certified
  • Heated: Yes
  • Insulated: Yes

         ✔   Free Shipping
        ✎  Need a written quote? 
              Request Online
        $  Volume Pricing on Large Orders

       ❔ Questions? Call (800) 583-4891


✔  All items ship for free

☏  Call: (800) 583-4891 for pricing and shipping questions.

Shipping estimates shown on the map pertain to this specific product only. Orders typically ship within 1-2 business days if the order is placed before 2PM Eastern Time. Transit times displayed in the map are listed in business days, and are approximate. The day that the order is shipped is not counted as a transit day.

*Unable to ship to TX, NM, OK, and AR

About Hot Box Fiberglass Enclosures

The standard fiberglass enclosures meet the current ASSE 1060 performance standards guaranteeing you will get the most reliable products.

Open hot box enclosure

Hot Box Open to Show RPZ

The Benefits Found in Hot Box Fiberglass Enclosures

Lasting Quality – The enclosures offer a high-quality finish of UV-stabilized marine-grade gel coat guaranteeing years of protection for your equipment.

Dependable Insulation – All Hot Box® fiberglass enclosures have spray foam insulation. The spray foam supports bonding with the interior wall in order to prevent disfigurement during freezing or thawing conditions. Unlike board foam, spray foam will not flake. It will stay firmly attached to the enclosure's walls.

Available Choices – You will be given a variety of styles and sizes to choose from to meet your project's requirements.

Excellent Accessories – You can add a fan, vent, or alarm to the enclosure for the pump or other equipment in order to keep them cool.

Other Valuable Information About Hot Box Fiberglass Enclosures

The Designer Series™ Enclosures will save money and time due to fast installation. You will have easy access through the panels and lid for testing and maintenance. The Designer Series Enclosures provide other valuable benefits including corrosion and UV resistance, bonded foam insulation along with wall-mounted heaters.

Flip Top Lids - You will appreciate its convenient flip-top lid for easy and fast backflow access. On top of that, these lids offer weatherproofing and vandal resistance that's built into the lid's design.

EZ Box® Enclosures are a one-piece drop-over design for fast and easy installation that is perfect for landscaping and irrigation applications when access is limited.

Larger Hot Box Enclosure

Hubbell Hot Box Enclosure

Fiberglass RPZ Enclosure

RPZ Enclosure

Vent Guard® &Valve Cover™ Enclosures

Vent Guard is expressly designed to protect the air release valves used in most public water supply systems. Vent Guard is an excellent choice for landscape and irrigation with its hinged enclosure when maintenance is needed.

Hot Box® is a popular choice offering the largest range of fiberglass enclosures within the industry. You will have an extensive variety of sizes and styles to choose from. All these enclosures are built focusing on the quality and detail that you require. Their extensive line of products is designed to guarantee your application requirements and expectations are met.