Bar screen filter

Bar screen filtering device

Bar screen rake apparatus

Bar screen with screen cleaner for waste water treatment install

Bar screening apparatus

Barge-mounted tidal-powered desalinization system

Barrel type fish and/or particulate screen device

Basement floor drain and integral trap

Basement sewer trap

Bathing pool assembly with water full of nano-scale ozone...

Bidirectional filter

Bio aerator

Biological filter attachment for aquarium hang-on filters

Biological filter for aquatic ecosystems

Bioremediation well and method for bioremediation treatment of c

Bioventing remediation system

Bioventing remediation system

Blocking device for use in a sewer manhole

Bottom aquarium filter

Bottom seal