Device to provide a tribochemical mode of operation in a lubrica

Disposable filter canister and housing

Disposable filter unit for automatic transmission fluid

Drain pipe animal guard

Dual direction bypass valve

Dual filter

Dual pick-up fuel strainer assembly

Dual stage filter element bypass valve

Duplex filter apparatus

Duplex strainer

Electronically detectable compound oil filter and its device

End cap relief valve mechanism for a filter

Fail safe device

Filter apparatus

Filter apparatus with a spring loaded safety valve plate

Filter arrangement

Filter arrangement with baffles

Filter assemblies containing coaxial bidirectional flow control

Filter assembly

Filter assembly including a magnetized component