烟筒止回阀的价格如下：镀锌不锈钢止逆阀：¥21.0不锈钢油烟机止回阀：¥7.79电动烟道止回阀：¥247.00PVC管道油烟机止回阀：¥40.00烟管止回阀：¥14.25厨房油烟机止逆阀：¥12.16烟道防火止回阀：¥3.40 - ¥3.90油烟机防味阀：¥2.47抽油烟机铁片三件套：¥9.00厨房