HalenHardy

Cut your secondary containment stormwater discharge costs in half. A secondary containment filter valve that automatically shuts off in case of an accidental spill. Discover the cost-effective way to stay ahead of sheen water inside of your secondary containment. Filter media automatically swells up and shuts off in case of an accidental spill. Perfect for outdoor, above-ground secondary containment. Stay in SPCC compliance. Implement as a Stormwater SWPPP Best Management Practice (BMP). Available in the following sizes: