??Features: <br />1 Clean and sanitary? no need for mouth suction. Allowing you to easily change the water in daily life. <br />2 Durable valves without using electricity. <br />3 Specially designed for normal water changes? while at the same time to separate sand and gravel at the bottom. <br />Description: <br />Let the suction tube immerse in the fish tank for 4-5 inches? repeatedly squeezing the blue balloon for several times until the water can automatically discharge from the tank<br />Name: water changer gravel siphon<br />Model: F10<br />Material: plastic<br />Color: clear<br />Total length: 170 cm<br />Diameter: 4.5 cm for large part? 1.5 cm for small part<br />How to use: <br />First immerse the gravel siphon in water? outlet up? quickly use hands to knead and press the balloon the ball a few times until the water overflows from the mouth of the tube? and then place the outlet down into the container. <br />Notification: <br />A As for secondary use? water in the hose must be drained out. <br />B Do not immerse outlet in water.<br />1 x Gravel siphon<br /><img src="http://img6.eachbuyer.com/x21/p25/bj100_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x21/p25/bj100_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x21/p25/bj100_3.jpg" />