Features:

100% Brand new and high quality

CO2 system is designed for low cost planted tank use

Easily set up/low cost/excellent quality

This bottle cap is very well suitable to be DIY Co2 system’s accessory that the size fits common PET plastic bottle.

The composition is used as special high quality plastic for issuing great resistibility of rub, so it can be used for a long time.

As for the another advantage of specific, we attached the great quality plastic O ring inside of the cap to prevent missing the Co2.

Easy set up, excellent design.

It's worth to try and using it.

Material: ABS

Color: Shown as the pictures

Size: Inside diameter: Approx 3cm/1.18"

Package includes: 1pc                      

Note:

2.Please understand because of the light irradiation or computer display difference, the item`s color might be slightly different from the pictures.