• Features:

    • CO2 Adapter TR21-4 to TR21-3 Converter Kit Compatible with TR21-4 Soda Bottles

    Features:

    1. the converter head is made of brass with good corrosion and abrasion resistance, which ensures the durability and airtightness of the connection, suitable for long-term use and not easy to damage by corrosion.  Compact size is also convenient to use in outdoor activities.
    2.Compatibility: this small converter offers the flexibility to use TR21-4 threaded soda bottles that would otherwise require TR21-3 threaded bottles.  It effectively utilizes existing TR21-4 bottle resources and reduces the number of bottles disposed of due to bottle model incompatibility.
    3.the working pressure can be lower than 3000 psi (approx.  207 bar), much higher than the conventional operating pressure of home soda maker (usually no more than 100-120 psi), within the safety range can effectively resist and control the high-pressure gas to ensure the safety and stability of the inflation process.
    4.Easy to use: when connecting the gas bottle, first align the threaded connection and then screwing in by hand, then moderately reinforced with a wrench, but not with excessive force so as not to damage the sealing ring of the threaded load.  Finally, slowly open the gas supply and pay attention to any leaks


    Package Included:
    1 x Cylinder Thread Converts Adapter


    Item Specifics
    Brand :Unbranded
    MPN :Does Not Apply
    Type :Cylinder Thread Converts Adapter
    Material :Brass
    Model :N/A
    Country of Origin :China

    Payment
    • We accept PayPal only.
    • All major credit cards are accepted through secure payment processor PayPal.
    • Payment must be received within 7 business days of auction closing.
    • If you have bought multiple items from me, you can send me one payment for all the items instead of paying for them individually. When you click the Pay Now button, eBay will automatically determine if there are other items you have won or purchased from me and will combine them for your review.
    Shipping
    • We Ship to Worldwide, but we do not ship to APO/FPO.
    • We ship to PayPal's address ONLY. Please make sure your address in PayPal is matched with your shipping address before you pay.
    • Item will be sent out by Air mail within 24-48 hours after cleared payment (excluding weekend & holiday).
    • Arrival time (estimated):
    •   - United States / United Kingdom / Australia / Canada: 14-21 working days (18-29 days)
    •   - Germany / France / Spain / Eastern Europe: 18-25 working days (24-35 days)
    •   - Other countries: 25-35 working days (35-49 days)
    • Shipping time is only estimated and not guaranteed. If not get item after 60 days, please contact us for solving.
    • For bulk purchases weight over 2kg, we may offer EXPRESS way.
    Returns
    • All buyers are responsible for Customs duties/VAT (value added tax) in their own respective country, if there is any.
    • We will leave POSITIVE FEEDBACK after your payment cleared. Please contact us if you are not satisfied with the item after receiving it.
    Customer Services
    • We will leave POSITIVE FEEDBACK after your payment cleared. Please contact us if you are not satisfied with the item after receiving it.
    • Serious Buyer Only! Please place bid only if you agree with all the terms.
    Contact Us
    • All emails will be answered within 1-2 business day. If you do not receive our reply, please kindly re-send your email/message and we will reply you as soon as possible.
    • Our Customers are our priority and our lifeline ,and this is reflected in the way we ensure you are satisfied with your purchase.

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    CO2 Adapter TR21-4 to TR21-3 Converter Kit Compatible with TR21-4 Soda Bottles

    Features:

    1. the converter head is made of brass with good corrosion and abrasion resistance, which ensures the durability and airtightness of the connection, suitable for long-term use and not easy to damage by corrosion.  Compact size is also convenient to use in outdoor activities.
    2.Compatibility: this small converter offers the flexibility to use TR21-4 threaded soda bottles that would otherwise require TR21-3 threaded bottles.  It effectively utilizes existing TR21-4 bottle resources and reduces the number of bottles disposed of due to bottle model incompatibility.
    3.the working pressure can be lower than 3000 psi (approx.  207 bar), much higher than the conventional operating pressure of home soda maker (usually no more than 100-120 psi), within the safety range can effectively resist and control the high-pressure gas to ensure the safety and stability of the inflation process.
    4.Easy to use: when connecting the gas bottle, first align the threaded connection and then screwing in by hand, then moderately reinforced with a wrench, but not with excessive force so as not to damage the sealing ring of the threaded load.  Finally, slowly open the gas supply and pay attention to any leaks


    Package Included:
    1 x Cylinder Thread Converts Adapter

    Item Specifics
    Brand :Unbranded
    MPN :Does Not Apply
    Type :Cylinder Thread Converts Adapter
    Material :Brass
    Model :N/A
    Country of Origin :China


    • We accept PayPal only.
    • All major credit cards are accepted through secure payment processor PayPal.
    • Payment must be received within 7 business days of auction closing.
    • If you have bought multiple items from me, you can send me one payment for all the items instead of paying for them individually. When you click the Pay Now button, eBay will automatically determine if there are other items you have won or purchased from me and will combine them for your review.
    • We Ship to Worldwide, but we do not ship to APO/FPO.
    • We ship to PayPal's address ONLY. Please make sure your address in PayPal is matched with your shipping address before you pay.
    • Item will be sent out by Air mail within 24-48 hours after cleared payment (excluding weekend & holiday).
    • Arrival time (estimated):
    •   - United States / United Kingdom / Australia / Canada: 14-21 working days (18-29 days)
    •   - Germany / France / Spain / Eastern Europe: 18-25 working days (24-35 days)
    •   - Other countries: 25-35 working days (35-49 days)
    • Shipping time is only estimated and not guaranteed. If not get item after 60 days, please contact us for solving.
    • For bulk purchases weight over 2kg, we may offer EXPRESS way.
    • All buyers are responsible for Customs duties/VAT (value added tax) in their own respective country, if there is any.
    • We will leave POSITIVE FEEDBACK after your payment cleared. Please contact us if you are not satisfied with the item after receiving it.
    • We will leave POSITIVE FEEDBACK after your payment cleared. Please contact us if you are not satisfied with the item after receiving it.
    • Serious Buyer Only! Please place bid only if you agree with all the terms.
    • All emails will be answered within 1-2 business day. If you do not receive our reply, please kindly re-send your email/message and we will reply you as soon as possible.
    • Our Customers are our priority and our lifeline ,and this is reflected in the way we ensure you are satisfied with your purchase.

    Copyright of gray-rabbit. All rights reserved.

    On Apr 12, 2026 at 23:43:27 PDT, seller added the following information:

    Datacaciques