Automatic engine shut down device and systems employing the same
Filter cartridge, particularly for jug water purifiers
Filter having improved means of positive shutoff incorporating s
Filter with shut-off valve
Fuel contamination monitor having a shut-off valve
Fuel filter and dehydrator
Full water treatment apparatus for use in soft drink dispensing
Gray-water reclamation and reuse system
Liquid cleaning system including back-flushing filter and centri
Pollution control system
Self-locking filter valve
Shower water filter assembly
Water tapping fixture
Water vending system