Hydroponics Fan Silencer 1.6".This Silencer with unique design 2.Technical silencer for the fans are you using Hydroponics Fan Silencer 6" 1.Light and flexible high quality material.2.Reduce 1/3 to 2/3 of the noise.3.Available in various sizes and lengths.4.Light in weight,easy for transportation and installation. ITEM NO DESCRIPTION NET WEIGHT(KGS)GROSS WEIGHT(KGS) DIMENSION (CM) ...