Nu-Clear 500 Series Filters provide the ultimate in aquatic life support systems for fresh and salt water aquariums, fountains, or ponds. Nu Clear filters feature heavy duty molded PVC construction with a stainless steel lid clamp for secure leak free operation and carry a 2 year guarantee. With several mechanical, chemical and biological options to choose from, Nu-Clear filters have the flexibility to fit all your aquarium and pond applications. The different models may be used on their own or in combinations with other models to provide the ultimate in filtration systems. The filter bodies are approximately 13" wide and 12.5" tall (overall width with fittings is 15"). An additional clearance of 8" above the filter is required to remove the cartridge for cleaning. Nu-Clear filters have 1" fnpt inlet and outlet ports, allowing for higher flow rates (up to 1200 gallons per hour) than similar filters with 3/4" ports. All models come with adapters for 3/4" and 1" hose, stainless steel hose clamps, teflon tape, and a drain valve.