DQTube is a standard-use product for diesel tanks that remains in the fuel tank to protect against moisture, particle accumulation & fuel emulsification.

DQTube is a leave-in, in-tank diesel filter designed for continuous everyday use.
It protects diesel fuel tanks from water, dirt, rust, and other contaminants by capturing both large and ultra-fine particles (smaller than 10 μm), as well as particle accumulation and moisture from condensation or leaks to prevent corrosion, bacteria-growth and fuel emulsification.