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4-in-1 canister filter with mechanical, chemical and biological filtration - plus UV sterilizerCompact design and built-in UV sterilizer minimize aquarium equipment clutterAdvanced, high-performance features help ensure aquarium water qualityEnhance aquarium filtration with Reaction large-capacity, 4-stage canister filters. Revolutionary canister filters boast greater media-storing capacity so aquarium water comes into contact with more filter media during the initial pass. Combined with a built-in 5W UV sterilizer, you enjoy clean, clear, and healthy aquarium water from a single, space-saving unit. Advanced, high-performance features help ensure high water quality plus quick and easy routine filter maintenance. 5/8" intake and return.Features:Large, customizable media baskets - Hold more chemical and biological media. Easy-to-remove basket trays have convenient handles for removing and loading all types of media.Integrated self-priming lever - Eliminates the need for manual siphoning. Simply pump the lever up and down to prime the Reaction 4-Stage Canister Filter.Integrated quick disconnect shut-off valve - Instantly creates a watertight seal that stops water from entering or exiting the filter. ON/OFF switch for UV lamp - Allows independent control of the UVC germicidal lamp to destroy green water and polish water to crystal clarity.Includes: Fine Filter Floss Pad(s), Coarse Filter Sponge (except EFU-25), 500 grams activated carbon, and 500 grams ceramic bio-filter rings.ModelAquarium Size up toDimensionsMedia BasketsTotal Media CapacityMax gph EFU-25100 gallons11.41" x 11.41" x 15.25" h24 Liters198 EFU-35150 gallons11.41" x 11.41" x 17.52" h36 Liters250 EFU-45175 gallons11.41" x 11.41" x 19.8" h48 Liters290Please click on "More Information" for installation instructions.

4-in-1 canister filter with mechanical, chemical and biological filtration - plus UV sterilizerCompact design and built-in UV sterilizer minimize aquarium equipment clutterAdvanced, high-performance features help ensure aquarium water qualityEnhance aquarium filtration with Reaction large-capacity, 4-stage canister filters. Revolutionary canister filters boast greater media-storing capacity so aquarium water comes into contact with more filter media during the initial pass. Combined with a built-in 5W UV sterilizer, you enjoy clean, clear, and healthy aquarium water from a single, space-saving unit. Advanced, high-performance features help ensure high water quality plus quick and easy routine filter maintenance. 5/8" intake and return.Features:Large, customizable media baskets - Hold more chemical and biological media. Easy-to-remove basket trays have convenient handles for removing and loading all types of media.Integrated self-priming lever - Eliminates the need for manual siphoning. Simply pump the lever up and down to prime the Reaction 4-Stage Canister Filter.Integrated quick disconnect shut-off valve - Instantly creates a watertight seal that stops water from entering or exiting the filter. ON/OFF switch for UV lamp - Allows independent control of the UVC germicidal lamp to destroy green water and polish water to crystal clarity.Includes: Fine Filter Floss Pad(s), Coarse Filter Sponge (except EFU-25), 500 grams activated carbon, and 500 grams ceramic bio-filter rings.ModelAquarium Size up toDimensionsMedia BasketsTotal Media CapacityMax gph EFU-25100 gallons11.41" x 11.41" x 15.25" h24 Liters198 EFU-35150 gallons11.41" x 11.41" x 17.52" h36 Liters250 EFU-45175 gallons11.41" x 11.41" x 19.8" h48 Liters290Please click on "More Information" for installation instructions.

4-in-1 canister filter with mechanical, chemical and biological filtration - plus UV sterilizerCompact design and built-in UV sterilizer minimize aquarium equipment clutterAdvanced, high-performance features help ensure aquarium water qualityEnhance aquarium filtration with Reaction large-capacity, 4-stage canister filters. Revolutionary canister filters boast greater media-storing capacity so aquarium water comes into contact with more filter media during the initial pass. Combined with a built-in 5W UV sterilizer, you enjoy clean, clear, and healthy aquarium water from a single, space-saving unit. Advanced, high-performance features help ensure high water quality plus quick and easy routine filter maintenance. 5/8" intake and return.Features:Large, customizable media baskets - Hold more chemical and biological media. Easy-to-remove basket trays have convenient handles for removing and loading all types of media.Integrated self-priming lever - Eliminates the need for manual siphoning. Simply pump the lever up and down to prime the Reaction 4-Stage Canister Filter.Integrated quick disconnect shut-off valve - Instantly creates a watertight seal that stops water from entering or exiting the filter. ON/OFF switch for UV lamp - Allows independent control of the UVC germicidal lamp to destroy green water and polish water to crystal clarity.Includes: Fine Filter Floss Pad(s), Coarse Filter Sponge (except EFU-25), 500 grams activated carbon, and 500 grams ceramic bio-filter rings.ModelAquarium Size up toDimensionsMedia BasketsTotal Media CapacityMax gph EFU-25100 gallons11.41" x 11.41" x 15.25" h24 Liters198 EFU-35150 gallons11.41" x 11.41" x 17.52" h36 Liters250 EFU-45175 gallons11.41" x 11.41" x 19.8" h48 Liters290Please click on "More Information" for installation instructions.

4-in-1 canister filter with mechanical, chemical and biological filtration - plus UV sterilizerCompact design and built-in UV sterilizer minimize aquarium equipment clutterAdvanced, high-performance features help ensure aquarium water qualityEnhance aquarium filtration with Reaction large-capacity, 4-stage canister filters. Revolutionary canister filters boast greater media-storing capacity so aquarium water comes into contact with more filter media during the initial pass. Combined with a built-in 5W UV sterilizer, you enjoy clean, clear, and healthy aquarium water from a single, space-saving unit. Advanced, high-performance features help ensure high water quality plus quick and easy routine filter maintenance. 5/8" intake and return.Features:Large, customizable media baskets - Hold more chemical and biological media. Easy-to-remove basket trays have convenient handles for removing and loading all types of media.Integrated self-priming lever - Eliminates the need for manual siphoning. Simply pump the lever up and down to prime the Reaction 4-Stage Canister Filter.Integrated quick disconnect shut-off valve - Instantly creates a watertight seal that stops water from entering or exiting the filter. ON/OFF switch for UV lamp - Allows independent control of the UVC germicidal lamp to destroy green water and polish water to crystal clarity.Includes: Fine Filter Floss Pad(s), Coarse Filter Sponge (except EFU-25), 500 grams activated carbon, and 500 grams ceramic bio-filter rings.ModelAquarium Size up toDimensionsMedia BasketsTotal Media CapacityMax gph EFU-25100 gallons11.41" x 11.41" x 15.25" h24 Liters198 EFU-35150 gallons11.41" x 11.41" x 17.52" h36 Liters250 EFU-45175 gallons11.41" x 11.41" x 19.8" h48 Liters290Please click on "More Information" for installation instructions.

4-in-1 canister filter with mechanical, chemical and biological filtration - plus UV sterilizerCompact design and built-in UV sterilizer minimize aquarium equipment clutterAdvanced, high-performance features help ensure aquarium water qualityEnhance aquarium filtration with Reaction large-capacity, 4-stage canister filters. Revolutionary canister filters boast greater media-storing capacity so aquarium water comes into contact with more filter media during the initial pass. Combined with a built-in 5W UV sterilizer, you enjoy clean, clear, and healthy aquarium water from a single, space-saving unit. Advanced, high-performance features help ensure high water quality plus quick and easy routine filter maintenance. 5/8" intake and return.Features:Large, customizable media baskets - Hold more chemical and biological media. Easy-to-remove basket trays have convenient handles for removing and loading all types of media.Integrated self-priming lever - Eliminates the need for manual siphoning. Simply pump the lever up and down to prime the Reaction 4-Stage Canister Filter.Integrated quick disconnect shut-off valve - Instantly creates a watertight seal that stops water from entering or exiting the filter. ON/OFF switch for UV lamp - Allows independent control of the UVC germicidal lamp to destroy green water and polish water to crystal clarity.Includes: Fine Filter Floss Pad(s), Coarse Filter Sponge (except EFU-25), 500 grams activated carbon, and 500 grams ceramic bio-filter rings.ModelAquarium Size up toDimensionsMedia BasketsTotal Media CapacityMax gph EFU-25100 gallons11.41" x 11.41" x 15.25" h24 Liters198 EFU-35150 gallons11.41" x 11.41" x 17.52" h36 Liters250 EFU-45175 gallons11.41" x 11.41" x 19.8" h48 Liters290Please click on "More Information" for installation instructions.

4-in-1 canister filter with mechanical, chemical and biological filtration - plus UV sterilizerCompact design and built-in UV sterilizer minimize aquarium equipment clutterAdvanced, high-performance features help ensure aquarium water qualityEnhance aquarium filtration with Reaction large-capacity, 4-stage canister filters. Revolutionary canister filters boast greater media-storing capacity so aquarium water comes into contact with more filter media during the initial pass. Combined with a built-in 5W UV sterilizer, you enjoy clean, clear, and healthy aquarium water from a single, space-saving unit. Advanced, high-performance features help ensure high water quality plus quick and easy routine filter maintenance. 5/8" intake and return.Features:Large, customizable media baskets - Hold more chemical and biological media. Easy-to-remove basket trays have convenient handles for removing and loading all types of media.Integrated self-priming lever - Eliminates the need for manual siphoning. Simply pump the lever up and down to prime the Reaction 4-Stage Canister Filter.Integrated quick disconnect shut-off valve - Instantly creates a watertight seal that stops water from entering or exiting the filter. ON/OFF switch for UV lamp - Allows independent control of the UVC germicidal lamp to destroy green water and polish water to crystal clarity.Includes: Fine Filter Floss Pad(s), Coarse Filter Sponge (except EFU-25), 500 grams activated carbon, and 500 grams ceramic bio-filter rings.ModelAquarium Size up toDimensionsMedia BasketsTotal Media CapacityMax gph EFU-25100 gallons11.41" x 11.41" x 15.25" h24 Liters198 EFU-35150 gallons11.41" x 11.41" x 17.52" h36 Liters250 EFU-45175 gallons11.41" x 11.41" x 19.8" h48 Liters290Please click on "More Information" for installation instructions.

4-in-1 canister filter with mechanical, chemical and biological filtration - plus UV sterilizerCompact design and built-in UV sterilizer minimize aquarium equipment clutterAdvanced, high-performance features help ensure aquarium water qualityEnhance aquarium filtration with Reaction large-capacity, 4-stage canister filters. Revolutionary canister filters boast greater media-storing capacity so aquarium water comes into contact with more filter media during the initial pass. Combined with a built-in 5W UV sterilizer, you enjoy clean, clear, and healthy aquarium water from a single, space-saving unit. Advanced, high-performance features help ensure high water quality plus quick and easy routine filter maintenance. 5/8" intake and return.Features:Large, customizable media baskets - Hold more chemical and biological media. Easy-to-remove basket trays have convenient handles for removing and loading all types of media.Integrated self-priming lever - Eliminates the need for manual siphoning. Simply pump the lever up and down to prime the Reaction 4-Stage Canister Filter.Integrated quick disconnect shut-off valve - Instantly creates a watertight seal that stops water from entering or exiting the filter. ON/OFF switch for UV lamp - Allows independent control of the UVC germicidal lamp to destroy green water and polish water to crystal clarity.Includes: Fine Filter Floss Pad(s), Coarse Filter Sponge (except EFU-25), 500 grams activated carbon, and 500 grams ceramic bio-filter rings.ModelAquarium Size up toDimensionsMedia BasketsTotal Media CapacityMax gph EFU-25100 gallons11.41" x 11.41" x 15.25" h24 Liters198 EFU-35150 gallons11.41" x 11.41" x 17.52" h36 Liters250 EFU-45175 gallons11.41" x 11.41" x 19.8" h48 Liters290Please click on "More Information" for installation instructions.

Removes gases and odors from aquariums. Removes discoloration from water. Fits Perfect-a-Flo and Undertow Undergravel Filters.

Easy-to-install combination protein skimmer and wet/dry filterSuperb mechanical, chemical, and biological filtrationBuilt-in protein skimmer to remove organic wasteNew generation filter combines the filtering capacity of a wet/dry, protein skimmer, and the ease of setup of a canister filter. Recirculates 700 gallons of water per hour for ideal water quality. The Surface Skimmer Overflow's patented stop and start feature combined with the Aqua Lifter self-priming water pump maintains even water flow and prevents flooding. 4 gallon Auto Fill System automatically replaces evaporated water. For saltwater aquariums up to 150 gallons.PS3 includes:Built-in protein skimmerWater pumpAir pumpSurface Skimmer OverflowAqua LifterTubingClampsFilter mediaPS4 includes: Everything in the PS3 Auto Fill SystemPlease click on "More Information" for installation instructions and operation guide.Please note: If you wish to ship items #29766, #29767, and #29768 by express service, additional shipping charges will apply during checkout.

Easy-to-install combination protein skimmer and wet/dry filterSuperb mechanical, chemical, and biological filtrationBuilt-in protein skimmer to remove organic wasteNew generation filter combines the filtering capacity of a wet/dry, protein skimmer, and the ease of setup of a canister filter. Recirculates 700 gallons of water per hour for ideal water quality. The Surface Skimmer Overflow's patented stop and start feature combined with the Aqua Lifter self-priming water pump maintains even water flow and prevents flooding. 4 gallon Auto Fill System automatically replaces evaporated water. For saltwater aquariums up to 150 gallons.PS3 includes:Built-in protein skimmerWater pumpAir pumpSurface Skimmer OverflowAqua LifterTubingClampsFilter mediaPS4 includes: Everything in the PS3 Auto Fill SystemPlease click on "More Information" for installation instructions and operation guide.Please note: If you wish to ship items #29766, #29767, and #29768 by express service, additional shipping charges will apply during checkout.