Pondmaster Foam Media Pads provided a large surface area for benifical bacteria to cultivate. These Foam Pads are washable / reusable, and can be placed separtley or as a first layer when used in combination with carbon coated media pads. 
Part# 12205
 
Package contains 2 Reusable Foam Pads 
Provides chemical & biological filtration
Size: 11.75" x 11.75" 
Reusable and washable for extended life
 
Compatible With: 1000 & 2000 Series