ENPAC Rectangular, Cone Style Storm Sentinel® Catch Basin Insert, Adjustable, 16"x20" to 28"x36" (MPN: 4341)

Description

The Storm Sentinel® Catch Basin Insert is engineered to prevent sediment, debris, and other pollutants from entering storm drains while maintaining optimal water flow. This rectangular, cone-style model is equipped with an adjustable steel wire frame to fit a wide range of drain sizes—from 16"x20" to 28"x36"—and allows for quick, one-person installation without special tools.

Its geotextile fabric effectively filters out contaminated sediment, while overflow bypass ports handle high-flow storm events, preventing backups. The cone depth increases sediment and debris capacity without extending above the grate. Fully compliant with EPA, SPCC, and NPDES stormwater management regulations, this unit is reusable until water flow becomes restricted.

Key feature

• Adjustable steel wire frame fits 16"x20" to 28"x36" drains
• Cone-style design for increased capacity
• Overflow bypass ports for high-flow storm events
• Low-profile installation beneath the grate
• One-person installation without tools
• Geotextile fabric traps sediment and debris
• Reusable until flow capacity is reduced
• Optional oil-absorbing Spilltration® insert for hydrocarbons
• U.S. Patent No. 10,384,155
  

Specifications

• Material: 8 oz. Non-Woven Geotextile
• Cone Depth: 18 in. (45 cm)
• Load Capacity: 40 lbs. (18 kg)
• Flow Rate: 90 gal. (340.69 L) per min. per sqft.
• Regulatory Compliance: 40 CFR 122.26, EPA, SPCC, NPDES
  

Documents

View Catalog Page:
Catalog Page 86, 87 - 4341, 4343

View Product Instructions:
4341, 4343 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 Rectangular, Cone Style Storm Sentinel® Catch Basin Insert, Adjustable, 16"x20" to 28"x36" (MPN: 4341) offered at a lower price by an authorized distributor within 6 months of purchase, we will match the price and refund the difference.

Contact: info@tanksupplydirect.com