ENPAC Frameless, Cone Style Storm Sentinel® Catch Basin Insert, No Overflow, 36" X 48"(MPN: 4320-NO)

Description

The Storm Sentinel® Catch Basin Insert is a highly effective solution for preventing harmful pollutants from entering storm drains. This frameless model offers a simple, cost-effective design that provides powerful protection against sediment and debris, making it the most affordable catch basin insert available.

Designed for easy customization, the frameless fabric can be cut to fit specific basin sizes. Its low-profile, below-grate installation ensures it is unobtrusive, while the durable geotextile fabric prevents contaminated sediment from washing into drains. This model features no overflow bypass for maximum filtration performance.

Key feature

• Frameless design – cut the fabric to size for custom fit
• One-person installation and removal – no special tools required
• Below-grate placement for a discreet, low-profile setup
• Geotextile fabric traps contaminated sediment before it enters the drain
• No overflow bypass for full filtration efficiency
• Reusable until it no longer maintains adequate water flow
• Compatible with Storm Water Pollution Prevention Plans (SWPPP)
• Optional oil-absorbing Spilltration® insert for hydrocarbon capture
  
• Available Options:
  • 4320 – Overflow Bypass
  • 4320-IB – Oil Absorbing

Specifications

• Material: 8 oz. Non-Woven Geotextile
• Country of Origin: USA
• Dimensions (LxW): 36 in. x 48 in. (91 cm x 122 cm)
• Cone Depth: 18 in. (45 cm)
• Weight: 1 lb. (0.5 kg)
• Flow Rate: 90 gal. (340.69 L) per min. per sqft.
• Load Capacity: 40 lbs. (18.1 kg)
• Regulatory Compliance: 40 CFR 122.26, EPA, SPCC, NPDES
  

Videos

Documents

View Catalog Page:
Catalog Page 89

View Product Instructions:
4320, 4326 Storm Sentinel Instructions

View Product Instructions:
BMP Maintenance Log

View SDS:
Oil Only Absorbing Packet SDS

View Regulations:
Codes and Regulations

Shipping & Warranty

Shipping Information

• Manufacture Lead Time: 1-2 Week Lead Time 
  
• Ships From (State): OH
  

Products are subject to freight or parcel shipping costs. Shipping charges are calculated at checkout based on delivery location, product size, weight, and carrier requirements.

Each tank is manufactured and assembled in the USA using high-quality materials and strict quality control standards—built for long-term, dependable use in demanding applications.

Warranty Information

Warranty coverage varies by manufacturer and product type. For warranty details or to initiate a warranty claim, please contact Tank Supply Direct at info@tanksupplydirect.com.

Price Match Guarantee

If you find the ENPAC Frameless, Cone Style Storm Sentinel® Catch Basin Insert, No Overflow, 36" X 48" (MPN: 4320-NO) offered by an authorized distributor at a lower price within 6 months of purchase, we will match the price and refund the difference.

Contact: info@tanksupplydirect.com