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Ultra-Drain Guard Adjustable Frame

stays in place even with grate removed

The Ultra-Drain Guard comes in several models, most of which are secured by the weight of the storm drain grating. However, the adjustable frame model uses a steel framework to prevent it from falling into the drain basin. This steel framework can be adjusted to fit different drain sizes. The main advantage of this model is that it remains in place even when the grating is lifted, eliminating the need to secure it beforehand. Additionally, the installation is aesthetically pleasing as there is no excess material to trim or protrude above the grating, resulting in a clean and simple appearance.


  • Adjustable catch basin insert, quickly re-sizes to fit almost any storm drain – no trimming of excess fabric required.
  • Steel frame adjusts and keeps Ultra-Drain Guard in place – preventing it from falling into the basin even when the grate is lifted.
  • Heavy-duty hook-and-loop fasteners around the perimeter of the Ultra-Drain Guard skirt keeps it secured to the frame.
  • Quick and clean installation – no measuring or trimming required.
  • The steel frame can be reused – replacement filter fabric available and is quickly and easily installed.

Product Code 











Adjustable Frame 1 Pack 

508 to 813 

406 to 660 




Adjustable Frame 10 Pack 

508 to 813 

406 to 660 




Adjustable Frame Replacement Filter 10 Pack 






How much water can the Ultra-Drain Guard handle?

When new, the Ultra-Drain Guard has a flow rate of 3,469 LPM/m2. However, the unit has been designed with overflow ports.  These allow the Ultra-Drain Guard a flow rate of 2,914  LPM which will prevent any flooding or ponding during extreme rain events.  Any water that goes through the overflow is essentially untreated.

Does this product work with synthetic oils?

Yes, the needle-punched material used, can absorb synthetic oils.

How long will an Ultra-Drain Guard last?

The lifespan of an Ultra-Drain Guard depends on various factors, such as the amount of rainfall, type, and quantity of pollutants. To determine its effectiveness, it is recommended to inspect the unit after each significant rain event.

Can the Ultra-Drain Guard be reused?

It can be removed, emptied out and replaced if it is filled with sand, silt, and sediment or trash and debris. However, it cannot be reused if it is saturated with oil, gas or other hydrocarbons due to the risk of flushing out pollutants during a major rain event. It is recommended that the unit be replaced in such cases.

Can I replace just the filter fabric without buying another frame?

Yes, replacement fabric is available in a 10-pack (CHUT8932).  Simply remove the fabric by pulling apart the hook and loop fasteners around the top perimeter of the Ultra-Drain Guard and replace it with a new one.

Why would I use the Ultra-Drain Guard Adjustable Frame Model instead of one of your other Ultra-Drain Guard models?

The unique feature of the adjustable frame model is, of course, the adjustable frame. This allows the unit to stay in place whenever the catch basin’s grate is lifted or removed.  Our other Ultra-Drain Guard relies on the grate to pinch the fabric and hold the unit in place.

Is hardware included?

If you purchase either CHUT8930 (1-pack) or  CHUT8931 (10-pack), you will receive everything you need, including the hardware (frame).  No other parts, pieces or components will be necessary to install/use your Ultra-Drain Guard.

What other products could be used instead of the Ultra-Drain Guard Adjustable Frame Model?

The Ultra-Drain Warden Economy Frame Model is very similar, with the exception of a reusable frame.

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