The adjustable catch basin inserts help companies comply with Stormwater Pollution Prevention Plans and Stormwater Best management Practices by protecting your storm drains and catch basins. The Storm Sentinel™ is a sure way to catch oil and sediment headed into storm drains and sewers.

21340 & 21341 trap sediment only while the 21343 & 21344 are equipped with 2 oil-absorbent packets. The Storm Sentinel guards against any potential discharge. Fits any size rectangular catch basin from 16" x 24" to 24” x 36” and round basins from 24” x 26” Helps comply with NPDES, 40CFR 122.26 (1999) when used as Best Management Practice in Stormwater Pollution Prevention Plans.