?Born for promoting plant growing£¬ this D501 Crystal Aquarium Water Plants Necessity DIY CO2 Generator System Kit (Chinese Version) will be a great help for creating a more wonderful aquarium environment. With 2 air-pipe locks on the bottle cap£¬ the CO2 generator system kit could prevent the air-pipe getting loose. It also comes with a specialized pressure gauge so that safe area and scale can be seen clearly. Moreover£¬ latticed shape underside makes the pressure even while its needle valve can be disassembled for easy cleaning. Need I say more? Chose it and build up your own CO2 system now!How to use£¬ please click here: http://v.youku.com/v_show/id_XNDQxNjkxNzA4.html?from=s1.8-1-1.2                                    Features            With 2 air-pipe locks on the bottle cap£¬ prevent the air-pipe getting looseSpecialized pressure gauge£¬ so safe area and scale can be seen clearlyYou can built up your CO2 system within 15 minutes by using this complete DIY CO2 kit combo for planted aquariumThis bottle cap fits common PET plastic bottle perfectlyLatticed shape underside makes the pressure evenNeedle valve can be disassembled for easy cleaningCorrosion resistant£¬ anti-choking£¬ long life spanSafety valve can be manually operatedThick soft tube£¬ deformation resistantAlready pass air-tight test£¬ safe to useCan be used as a rackPromote plant growing£¬ easy to set up£¬ low cost                                                            Specifications            Model    D501    <br>Material    Durable PC    <br>Color    Blue    <br>Dimensions    (6.30 x 2.36 x 1.57)" / (16 x 6 x 4)cm (L x W x H)    <br>Weight    8.75oz / 248g    <br> 1.The bottle have to use carbonated beverage bottle£¬ do not use pulpy£¬ green tea£¬ mineral water bottles£¬ etc.<br>2.Trimming valve regulation avoid by sudden big or small£¬ do not suddenly turn up£¬ after immediately shut down again£¬ so as; to cause abnormal pressure to the bottle.<br>3.Make sure carefully observe the direction of the parts before assembly. The usual wrong handle way will cause abnormal react ion components as follow: the contrary direction of the check valve and fine-tuning in the direct.                                                             Package Includes            1 x Reactive Carbon Dioxide Generator1 x User Manual                                                            Extra Info            1.The bottle have to use carbonated beverage bottle£¬ do not use pulpy£¬ green tea£¬ mineral water bottles£¬ etc.<br>2.Trimming valve regulation avoid by sudden big or small£¬ do not suddenly turn up£¬ after immediately shut down again£¬ so as; to cause abnormal pressure to the bottle.<br>3.Make sure carefully observe the direction of the parts before assembly. The usual wrong handle way will cause abnormal react ion components as follow: the contrary direction of the check valve and fine-tuning in the direct.