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These elements must be balanced to prevent adverse effects like chalk precipitation and drastic pH changes
The non-toxic formulation makes it an ideal choice for ponds populated with fish
Ingredients: Includes Spirulina
This is a genuine Valterra 1 1/2" slide gate valve replacement seals
Black Knight 8" Dia x 16" Long Filter Brushes - 25 Pack t5 These elements must be balancedWhat are Black Knight Filter Brushes: Black Knight filter brushes are made from the very highest quality Hydrotek polypropylene twisted into two stainless steel wires to form a cylindrical brush with a loop at one end for hanging. The other end is capped with a plastic knob for safety. They last indefinitely and are the easiest to use, most efficient and most cost effective pond filter medium you can buy. Our brushes are used in filtration systems in
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