The best storm drain filter bags depend on your drain dimensions, runoff conditions, and how many inlets need protection. For larger jobs, the VIHOSE 4-pack offers multiple hanging inserts; the Natotela 5-pack specifies sediment and oil capacity; and the VIHOSE 2-pack suits smaller deployments. The PIG filter sock is a flexible surface barrier rather than a hanging bag, while the geotextile filter is intended for dry-well applications. Check fit and installation requirements before choosing.
| Product | Best suited for | Type |
|---|---|---|
| VIHOSE 4 Pack, 48 x 48 x 22 inches | Multiple drains at a jobsite | Hanging catch basin insert |
| Natotela 5 Pack, 47.2 x 47.2 x 23.6 inches | Buyers seeking stated capture capacity | PET catch basin insert |
| VIHOSE 2 Pack, 48 x 48 x 22 inches | Protecting a smaller number of drains | Hanging catch basin insert |
| PIG Sediment Filter Sock, 5 inches x 5 feet | Uneven ground and perimeter control | Surface filter sock |
| Non-Woven Geotextile Filter, 31.49 inches x 7 feet | Dry-well filtration projects | Geotextile filter material |
VIHOSE 4-Pack Storm Drain Filter
Best for: Parking lots, construction sites, or industrial areas that need several catch basin inserts. Each of the four bags measures 48 x 48 x 22 inches and uses a hanging “witches hat” shape that sits below a drain grate.
The listed features say the insert is designed to collect sand, dirt, leaves, trash, sediment, and light oil residue from runoff. Sewn-on straps help position the guard and support removal for maintenance. This makes the set a practical choice when multiple compatible inlets need protection using the same style of insert.
Limitation: Confirm the opening and below-grate clearance against the stated dimensions before ordering. The feature list does not state a specific sediment or oil capacity.
Natotela 5-Pack PET Catch Basin Inserts
Best for: Buyers who need several inserts and want stated pollutant-holding figures. The five PET bags measure 47.2 x 47.2 x 23.6 inches. The product description says they can hold up to 1 gallon of oil or up to 40 pounds of sediment, debris, and trash.
The listing describes the PET material as rigid and wear-resistant, with UV added to help prevent aging. Four polyester lifting loops are sewn onto each bag for installation and removal. Choose this option if the dimensions suit the basin and the stated capacity information helps plan inspection and servicing.
Limitation: The capacity figures are maximums stated in the listing, not a recommended maintenance interval. Check the bag regularly and remove it when accumulated material requires servicing.
VIHOSE 2-Pack Storm Drain Filter
Best for: Smaller sites or buyers protecting two inlets rather than ordering a larger multipack. Each hanging insert measures 48 x 48 x 22 inches and is listed for catch basins and inlets in parking lots, streets, construction sites, service areas, and industrial facilities.
The bag is designed to capture sand, dirt, leaves, trash, sediment, and light oil residue from runoff before it enters the drainage system. Sewn-on straps help hold it in position and make removal easier during maintenance. Choose this set over the four-pack if two inserts match the number of drains that need protection.
Limitation: The two inserts share the same large dimensions as the four-pack, so a smaller package does not mean a smaller bag. Verify grate and basin fit before purchase.
PIG Sediment Filter Sock
Best for: Buyers who need a flexible barrier at ground level rather than a bag suspended below a grate. This blue sock measures 5 inches in diameter and 5 feet long. Its flexible construction follows uneven ground, and the listing describes it as allowing water through while helping block leaves, debris, and sediment.
The stated applications include storm drains, trench and inlet drains, stockpiles, property perimeters, light construction activities, and check dams. It is a useful alternative when surface placement is more suitable than installing a catch basin insert.
Limitation: This is a short filter sock, not a hanging catch basin bag. Consider the required coverage length and placement before choosing it for a drain.
Non-Woven Geotextile Filter
Best for: Buyers sourcing geotextile material for a dry-well project, rather than a ready-made catch basin insert. The listed product measures 31.49 inches by 7 feet and is described as a non-woven geotextile filter.
Its dry-well focus makes it a related drainage-filtration option, but the supplied product information does not describe it as a storm drain bag or provide installation details for catch basins. Choose it only when the project calls for geotextile material and the dimensions meet the design requirements.
Limitation: It is not directly comparable to the hanging inserts or the PIG filter sock. The listing details provided do not specify pollutant capacity or a catch-basin installation method.
Buying Guide: How To Choose A Storm Drain Filter Bag
What dimensions should you check?
Measure the drain grate and the available space below it. Compare those measurements with the full insert dimensions, including its depth. For example, the VIHOSE inserts are 48 x 48 x 22 inches, while the Natotela inserts are 47.2 x 47.2 x 23.6 inches. A close fit matters because a bag that cannot hang below the grate may not suit the basin.
How many filters should you buy?
Match pack size to the number of drains and the number of replacements your maintenance plan requires. The VIHOSE sets contain two or four filters, and the Natotela set contains five. A larger pack can serve multiple inlets, but only if the bags fit those locations.
Should you choose an insert or a filter sock?
A hanging insert sits below the grate and collects runoff material inside the basin. A filter sock sits on the surface and can follow uneven ground. Choose based on where the barrier can be installed and what the site requires; these products are not interchangeable in every layout.
What capture capacity or material details matter?
Compare stated capacity where available, but do not treat maximum capacity as a substitute for inspections. The Natotela listing gives oil and sediment capacity figures, while the VIHOSE listings describe the material types the filters are designed to collect without specifying capacity. Review filters regularly and remove collected sediment and debris as needed.
Frequently Asked Questions
What does a storm drain filter bag do?
A storm drain filter bag hangs below a grate and is designed to capture sediment, debris, and other listed pollutants from runoff before they enter the drainage system.
Can a filter sock replace a catch basin insert?
Not always. A filter sock is a surface barrier, while a catch basin insert hangs below the grate. Choose the type that fits the drain design and installation plan.
How do I know if an insert will fit?
Measure the grate opening and the clearance below it, then compare those measurements with the bag’s width and depth. Confirm that straps or lifting loops can be positioned as intended.
How often should a storm drain filter bag be checked?
Check it according to site conditions and maintenance procedures, especially after runoff events. Remove accumulated material when the filter needs servicing; the provided product details do not establish a universal inspection schedule.
Do all storm drain filter bags capture oil?
No. Product claims vary. The VIHOSE listings mention light oil residue, and the Natotela listing states a maximum oil capacity. Check the individual product description for its specific claims.