The Seachill TR5 Chiller from Teco is suitable for aquariums upto 250 litres and comes with the following features... Efficient Cooling Technology • High efficiency patented titanium exchanger • Increases cooling efficiency 30%, with considerable energy savings •Ensures stable and consistent temperatures Easy In-line Installation • Requires no hard plumbing • Barbed in-line connections included • Inlet/outlet connections with valve and double fast joints for 5/8\", 3/4\" & 1\" diameter tubing • Leak-proof compression fitting for hose connections Digital Thermostat • Easy-to-use push button digital temperature control system • Automatically maintains the desired set temperature within 1°F • LED display Efficient Design • Quiet operation with \"SILENT\" mode for additional sound dampening • Modern European design with compact dimensions • Molded handle allows for easy lifting and carrying • Sturdy plastic chassis with a small footprint allows perfect for placement in an aquarium stand or near an aquarium setup User friendly features • Removable air filter for fast maintenance • Flashing display \"ALARM\" indicating when air filter is obstructed • Flashing \"ALARM\" indicating when UV bulb needs to be replaced (if UV present) Techincal Details: Cooling Power Consumption: 174W Min Flow Rate: 500 lph Aquarium Size: Upto 250 litres(water temp. 25°C - Room temp. 30°C - Heating load 0,3 w / lt) Dimensions:37 x 24 x 34 (h) cm Weight: 12 kg Connections: 16 or 20 mm