Pond Force™ Economy Rock Covers for Air Pumps Item:Rock Cover With 3" Vent Eliminates algae growth in your

Eliminates algae growth in your pond

Easy-to-use pump top measures out 100 gallons of treatment per pump

For large fish loads it is advisable to double the amount of carbon for the pond size

Supreme® Hydro-Mag® 18 (#40138)

Part # UPC Code Description 520401 813166020146 KoiAir™ Single Stick Plate 160184 811262010702 KoiAir™ Dual Stick Plate

Pond Force™ Economy Rock Covers for Air Pumps Item:Rock Cover With 3" Vent Eliminates algae growth in yourPond Force Economy Rock Covers are economical covers that make it easy to protect your air pump while hiding it in any environment! This well designed cover comes with optional air vent. The following dimensions apply to either the RC1 or the RC1 V Outside Dimensions are12" wide x 15" long x 10" high. Inside at the bottom the dimensions are 14" x 11. 5" The cavity is about 9" or 9. 5" high. The sides taper inward. At the top of the cavity the