Hydro-Logic® Poly Spun Sediment Filters Size:Hydro-Logic Merlin GP Sediment Pre-Filter (Non-Chlorinated Water) contains an isolated form of

contains an isolated form of bacillus bacteria known as bacillus amyloliquefaciens

Mag-Pro is a unique supplement that can be used with any complete nutrition formula as a blossom booster

cuttings or seedlings

Duct length is 25 ft and includes 4 zip ties per bag

Pumps are oil-free and have a ceramic shaft impeller that allows for use in fresh or saltwater applications

Hydro-Logic® Poly Spun Sediment Filters Size:Hydro-Logic Merlin GP Sediment Pre-Filter (Non-Chlorinated Water) contains an isolated form ofPoly Spun Sediment Filters are a pre filter that will reduce silt, rust, dirt, sand and sediment. #728885 is 10 in x 2. 5 in. #741658 is 20 in x 2. 5 in.