UltraTech 9857 Grate Guard, 28" x 42", Sediment, High Flow, No Overflows
The UltraTech 9857 Grate Guard is a sediment-only, high-flow stormwater inlet protection insert designed for 28" x 42" flat storm drain grates. It installs under the grate using a high-flow woven filter fabric to retain sediment, silt, and debris while allowing runoff to pass through to the drain. Once installed, accumulated material can be removed from street level with basic tools, reducing the need to lift or remove the grate during routine maintenance.
- 28" x 42" Inlet Coverage – Sized to fit 28" x 42" (711 x 1,068 mm) storm drain grates, providing full under-grate coverage for sediment and debris control in flat grate catch basins.
- Sediment-Only High-Flow Filtration – High-flow woven filter media captures debris, sediment, and silt while maintaining flow through the drain in a sediment-only, no-overflow configuration.
- Under-Grate Installation – Installs beneath the storm drain grate as an insert, allowing the grate to remain in place while the filter collects material from incoming runoff.
- Street-Level Maintenance – Sediment and debris can be removed with a broom, flat shovel, or similar tool from street level, minimizing grate handling and simplifying maintenance.
- Durable Woven Construction – Manufactured with high-flow woven fabric and hi-vis polypropylene construction, with a 2 lb (0.9 kg) unit weight suitable for repeated use in stormwater programs.
- Model Number
- 9857
- Product Type
- Ultra-Grate Guard – Sediment Only Model, High Flow, No Overflows
- Dimensions
- 28" L x 42" W x 4" H (711 x 1,068 x 102 mm)
- Grate Compatibility
- Flat storm drain / catch basin grates sized 28" x 42"
- Filter Material
- High-flow woven stormwater filtration fabric; durable hi-vis polypropylene construction
- Filtration Type
- Sediment, silt, and debris control (sediment-only configuration)
- Flow Capacity
- High-flow design; rated up to 250 gpm/sq-ft (per Grainger technical data)
- Overflow Design
- No overflows – closed high-flow sediment model
- Installation Method
- Under-grate installation; unit sits below the grate within the inlet frame
- For Drain Type
- Storm drain / flat grate inlet
- Substances Filtered
- Debris, sediment, silt
- Weight
- 2 lbs (0.9 kg)
- Series
- Ultra-Grate Guard®
- UPC
- 808416102192
- Color
- High-visibility lime / green
- Country of Origin
- Guatemala (subject to change)
- Compliance
- Helps support NPDES 40 CFR 122.26 (1999) and TMDL stormwater requirements when used as part of BMPs
- Brand
- UltraTech International
- Liftgate service required if the site has no loading dock.
- Driver will not move freight inside the building.
- Inspect and note damage on the delivery receipt before signing.
- Freight claims filed by us on your behalf within 48 hours.
- Residential and limited-access sites carry a carrier accessorial; we quote it before dispatch.
Common questions
Warehouse Gear Hub is an authorized national distributor of material handling and safety equipment. If your answer is not here, a specialist will pick up the phone.
Who is Warehouse Gear Hub?
An authorized national distributor of industrial equipment, material handling systems and regulatory safety solutions, supplying manufacturing facilities, commercial warehouses, government entities and small businesses nationwide.
We partner directly with the brands we carry, which is how we keep facilities compliant with OSHA and EPA standards without boutique pricing. Need a formal quote, volume pricing, or to buy on a corporate PO? Submit an RFQ and our team returns a customized quote within 2 business hours. Tax-exempt organizations should contact us before ordering so we can apply your status up front.
Reach a specialist directly on 1-800-794-1049, Monday to Friday, 8:00 AM to 4:00 PM CST. Emails received in business hours are answered within two hours.
What happens after I purchase?
You get an order confirmation straight away. An equipment specialist then reviews the order and confirms freight mode before anything is dispatched, so fit and delivery are checked by a person rather than just a cart.
Most orders ship within 3 to 5 business days and tracking is emailed the moment the unit leaves. Larger equipment travels by LTL freight to curbside, and the carrier calls you to arrange a delivery window. If your site has no loading dock, add liftgate service on the product page before checkout.
Is my product authentic and does it come with warranty?
Yes. Warehouse Gear Hub is an authorized distributor and we buy direct from the brands we carry, so every unit arrives new and genuine, backed by the manufacturer's own warranty. Nothing we sell is grey-market or refurbished.
Warranty terms are set by each manufacturer and vary by model, so rather than quote a blanket figure we print the exact term on the product's own page wherever one applies. Not every item carries a stated warranty. If you need coverage confirmed in writing before you order, call us and we will get it from the manufacturer.
What happens if there is a problem with my order?
Inspect the shipment before you sign for it. Note any damage on the delivery receipt, because that receipt is what a freight claim rests on and a clean signature makes damage far harder to recover.
Then call 1-800-794-1049 or email info@warehousegearhub.com with photos from several angles, and we file the freight claim on your behalf within 48 hours. If anything arrives missing or incorrect, tell us right away and we will put it right.
Eligible items can be returned within 30 days of receipt in their original packaging. Some products carry a restocking fee of up to 15% and return shipping is usually the buyer's; we confirm both before you commit to a return, so there are no surprises.
Where will my order ship from?
Direct from the manufacturer or their nearest regional distribution center rather than from one central warehouse. That is normally the shortest and cheapest route to your dock, though it does mean the origin depends on the brand and on where you are.
If you need the origin and transit time in advance, whether for scheduling receiving or booking a delivery appointment, ask when you request your quote and we will confirm both.
Can I get a discount if I pay via wire transfer or ACH?
Yes. Paying by wire transfer or ACH takes 2% off your order total, because it saves the card processing fees. On a 30,000 dollar machine that is 600 dollars back in your budget.
Request a quote or call 1-800-794-1049 and your specialist will issue the invoice with the 2% already applied.