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24525 - 245 Foam Aquarium Filter ID 1 1/8"-OD 2 1/4"-Leng...
This pre-filter foam is approximately 2-1/4" Diameter by 6" Length. The inner diameter measures 1-1/8" and will fit over many aquarium intake tubes for use as a pre-fi...
only $1.99
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731A - Rena Filstar XP Bio-Chem Stars 20 Count by API
Bio-Chem Stars are a biological filtration medium that provides a substrate for the optimal growth of beneficial bacteria which break down organic wastes in an aquariu...
only $8.99
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745 - Rena Nexx and Smartfilter Bio-Chem Zorb Cartridge 1...
This BioChem Zorb cartridge is included with all Rena Nexx and SmartFilter aquarium filters. The four-sided cartridge has two layers of mechanical filtration and an in...
only $5.99
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745A - Rena Nexx and Smartfilter Bio-Chem Zorb Cartridges...
This BioChem Zorb cartridge is included with all Rena Nexx and SmartFilter aquarium filters. The four-sided cartridge has two layers of mechanical filtration and an in...
only $9.77
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745B - Rena Nexx and Smartfilter Bio-Chem Zorb Filter Car...
This BioChem Zorb cartridge is included with all Rena Nexx and SmartFilter aquarium filters. The four-sided cartridge has two layers of mechanical filtration and an in...
only $21.95
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745C - Rena Nexx and SmartFilter Bio-Chem Zorb Filter Car...
This BioChem Zorb cartridge is included with all Nexx and Rena SmartFilter aquarium filters. The four-sided cartridge has two layers of mechanical filtration and an in...
only $39.95
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746 - Rena Nexx and SmartFilter NitraZorb Cartridge 1ea
The Nitra-Zorb cartridge for the Nexx and SmartFilter is the first water filtration medium that removes ammonia, nitrite and nitrate in freshwater aquariums. Nitra-Zor...
only $3.49
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747 - Rena PhosZorb Cartridge for Nexx and Smart Filter 1...
The Nexx and SmartFilter Phos-Zorb cartridge contains a special filtration material that selectively removes phosphate and silicate, common nutrients found in fresh an...
only $3.49
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