Get on Amazon.com : http://www.amazon.com/gp/product/B0012QGRBC?tag=clothingattes-20<br /><br />Studor 20301 Mini-Vent with PVC Adapter 1 1/2-Inch or 2-Inch Connection<br /><br />This Mini-Vent advanced AAV protects the trap seals in the drainage system by allowing the intake of air <br />The device is very easy to fit and will decrease the amount of pipes needed <br />This patented and unique design can provide drainage solutions for bad odours and sewer smells
