From the product description, check product page for current description, price and availability:
- High Quality:Made of stainless steel material,more solid and last longer. makes it easier than ever to carbonate your beverages!
- Portable and Convenient: It can be attached to plastic bottles, gas (grey) ball lock connectors, or liquid (black) ball lock connectors.Less expensive and more portable than traditional CO2 systems.
- Easy to Use :Attaches to plastic bottles and connects to a gas side ball-lock disconnect in order to inject CO2 into the bottle, creating carbonation，your beer is available to drink almost immediately.
- Various Usage:Carbonation caps can carbonate a number of beverages, including beer, soda, water, and juice
- Please Note:For best results, make sure that your beverage is very cold so that the CO2 can be absorbed much faster
11/20/18 9 PM Central: This is selling for $8.99. That’s the best historical third party Amazon price I found. Shipping is also free to many US addresses. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability.
More: Recent Amazon Finds