2 pieces per pack
Replaces many air stones in common box filters and undergravel riser stems
The Power Agitator
Flexible, porous air tubes with large surface area
Provide powerful aeration and water agit...
Impeller Assembly for Aqua Clear 20 (201) Powerhead
Provides the convenience of a cordless cleaner/siphon
Battery powered - eliminates risk of electric shock
Requires 2 "C" batteries (not included)
Performs 3 functions: Gravel Cleaner, Water siphon, Algae cleane...