GreenClean Algaecide, 8 lb. Beneficial Bacteria (Koi Ponds & Water Gardens) It also reduces water loss

It also reduces water loss during the backflush and helps prevent beads from clumping together

formal fountains and waterfalls

12" extension has a flange around bottom that slides right over the top edge of the mini & small vault

The replacement filter for #PS2V Large Skimmer measures 16" x 26"

GreenClean Algaecide, 8 lb. Beneficial Bacteria (Koi Ponds & Water Gardens) It also reduces water lossThis popular product is designed to treat algae in both small garden ponds and large earth ponds. GreenClean works through oxidation, which provides immediate control of algae and complete biodegradation. There is no residual heavy metal from the product, which makes it ideal with copper sensitive species like Koi and Trout. Completely non hazardous to fish & plants, this product is registered with the EPA and is Organic certified by Organic Materials