EK-CoolStream Classic PE 240 medium thickness copper radiator for water cooling PCs Designed with a low FPI (13) allowing for high-performance cooling at low fan speeds due to the thicker core and low restriction Use with low speeds fans to achieve a near silent PC This product features two G1/4 threaded ports. EK recommends the use of EK compression fittings. Dimensions: 273 x 120 x 45mm (L x W x H)