What does ISF stand for?
ISF stands for "Intermittent Sand Filters"
How to abbreviate "Intermittent Sand Filters"?
"Intermittent Sand Filters" can be abbreviated as ISF
What is the meaning of ISF abbreviation?
The meaning of ISF abbreviation is "Intermittent Sand Filters"
What does ISF mean?
ISF as abbreviation means "Intermittent Sand Filters"
