This MARINELAND Penguin 150B Bio-Wheel Assembly is an effective replacement part for Penguin Filters. Discoloration of pleated Bio-Wheel material is normal and desirable. Irregular rotation is also normal. A Bio-Wheel rotating at any speed is working to eliminate toxic ammonia and nitrite.
Features: Effective replacement part
Includes: 1 Assembly
Intended For: Penguin Filters
Instructions:. Do not replace a Bio-Wheel unless it is damaged since beneficial bacteria live on it.
100B (20 gallon aquarium) = 5 in L x 5 in W x 7.5 in H
150B (30 gallon aquarium) = 8 in L x 5 in W x 6.75 in H
200B (50 gallon aquarium) = 9 in L x 5.25 in W x 7.5 in H
350B (75 gallon aquarium) = 15 in L x 5.25 in W x 7.25 in H
