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Quick-Ship Backflow Enclosures
Every enclosure on this page is a stocked item, not built-to-order. Order it and it typically leaves the warehouse the next business day, so a failed test, a frozen assembly, or a looming inspection does not turn into a multi-week wait.
Four Hubbell Hot Box fiberglass models stocked for quick-ship. Current stock status is shown on each model.
How Quick-Ship Works
- 1Pick a quick-ship model belowEach card shows live stock status, so what you see is what can ship.
- 2Order onlineNo quote or lead-time confirmation needed. Volume pricing is still available on request.
- 3Ships within 1 business dayA tracking number is emailed when it leaves the warehouse.
Free shipping on all orders
In stock — ships within 1 business day
ASSE 1060 certified
Hubbell Hot Box fiberglass
Quick-Ship Models
Inside dimensions are width, length, and height in inches. Three heated backflow enclosures and one vented pump enclosure.
In Stock
Heated
Hot Box HB1
Flip-Top Fiberglass • HF013027023
13"Width
27"Length
23"Height
- Heated & insulated — ASSE Class I freeze protection
- The compact option for tight meter-side installs
- Lockable flip-top lid, steel anchors included
In Stock
Heated
Hot Box HB1.5
Flip-Top Fiberglass • HF021033025
21"Width
33"Length
25"Height
- Heated & insulated — ASSE Class I freeze protection
- The mid-size workhorse with extra width for wider valve bodies
- Lockable flip-top lid, steel anchors included
In Stock
Heated
Hot Box HB2ST
Flip-Top Fiberglass • HF013047036
13"Width
47"Length
36"Height
- Heated & insulated — ASSE Class I freeze protection
- The long and tall option for longer assemblies and taller RP setups
- Lockable flip-top lid, steel anchors included
In Stock
Vented
Hot Box LB1.5V
Pump Guard, Vented • LF021033025AAV
21"Width
33"Length
25"Height
- Unheated — ASSE Class II, not a freeze-protection enclosure
- Vented to keep a pump cool; insulated to dampen noise
- Same footprint as the HB1.5, lockable flip-top lid
Not sure which size clears your assembly?
Enter the inside dimensions you need and the Backflow Enclosure Size Finder shows every enclosure that fits, quick-ship and built-to-order alike.
Quick tip: Measure the full installed assembly, including shutoff valves, test cocks, strainers, and unions, then add at least 6 inches to each dimension so the enclosure can stay in place during annual testing.