CO2 Resources

DIY Regulator Build

CO2 Regular Parts

Noob Guide to Building Your Own Regulator (Barr Report)

Refills & Swaps/Exchanges

San Francisco & Peninsula

Airgas
1495 Illinois St
San Francisco, CA 94107		Mon-Fri: 7:30AM-5PM
Sat-Sun: CLOSED		CO2 tank swap. 10# – ~$75
Aqua Forest Aquarium
1718 Fillmore St
San Francisco, CA 94115
(415) 929-8883		Mon: 11AM-7PM
Tue-Wed: CLOSED
Thu-Sat: 11AM-7PM
Sun: 12PM-6PM		Swaps/Exchanges (as of Feb 2023)
  • 5# – $45
  • 10# – $60
    • Linde Welding Gas & Equipment
    1690 Evans Ave
    San Francisco, CA 94124
    (415) 826-8627    		Mon-Fri: 7:30AM-4PM
    Sat-Sun: CLOSED    		Swaps/Exchanges Only (as of Feb 2023)

    East Bay

    Airgas 
    1224 6th Street
    Berkeley, CA 94710
    (510) 524-9353    		Mon-Fri: 8AM – 5PM
    Sat: 9AM-1PM
    Sun: CLOSED    		20# Tanks (as of November 2020)
    • Refill/Swap $75 (per Yelp)
    • Purchase $95 (unknown if new/reconditioned)
    Automatic Fire
    1617 industrial Pkwy
    Hayward CA 94544
    (510) 357-9982    		Mon-Sun: 7AM-7PM10# Tanks
    • Reconditioned $115
    • New $175
    • Refills $55
    20# Tanks
    • Reconditioned $125
    • New $195
    • Refills $65
    Coast Fire Equipment
    5930 Las Positas Rd
    Livermore, CA 94551
    (925) 606-1517    		Mon-Fri: 7:30AM-4PM
    Sat-Sun: CLOSED    		Refills (as of November 2020)
    • 5# – $25
    • 10# – $30
    • 15# – $33
    • 20# – $37
    Hydrostatic Testing  – $35
    Oak Barrel Winecraft
    1443 San Pablo Ave
    Berkeley, CA 94702
    (510) 849-0400    		Mon-Fri: 10AM – 6PM
    Sat: 10AM – 5PM
    Sun: CLOSED    		Swaps Only (as of December 2022)
    • 5# – $35
    • 10# – $40
    • 20# – $50
    + $35 if Hydro is out of date
    Emerald City Garden
    1776 Arnold Industrial Way
    Concord CA    		Mon-Fri: 9AM – 8PM
    Sat: 10AM – 6PM
    Sun: 10AM – 5PM    		20# Tanks
    • Swap – $20
    • Purchase – $120 + $20 fill ($140)
    US Alloys
    2756 Camino Diablo
    Walnut Creek CA 94597    		Mon-Fri: 8AM – 5PM
    Sat: 9AM – 12PM
    Sun: CLOSED    		Swaps/Exchanges Only
    10# – $48
    20# – $50

    South Bay

    Carbonic Service
    1920 De La Cruz Blvd.
    Santa Clara, CA. 95050
    (408) 727-8835    		Mon-Fri: 8:30AM – 4:00PM
    Sat-Sun: CLOSED

    Refills (as of February 2023)

    • 5# Refill – $27
    • 10# Refill – $30
    • 20# Refill – $32
      • Hydrostatic Testing – $32 (14 day turnaround)
    980 Hardware and Supply
    980 S. First St.
    San Jose CA 95110    		Mon-Fri 11AM – 7PM
    Sat: 11AM – 5PM
    Sun: CLOSED    		Exchange Only (as of November 2020)
    • 20# – $20.00
    • $40 tank, if tank is out of Hydro
    San Jose Hydroponics
    1999 Monterey Rd Ste 100A
    San Jose, CA 95112    		Mon-Sat: 11AM – 6:30PM
    Sun: CLOSED    		Exchange Only (as of February 2023)
    • Steel 50# – $34.99
    • Steel 20# – $24.99
    • Aluminum 50# – $35.99
    • Aluminum 20# – $24.99
    • Aluminum 10# – $19.99
    • Aluminum 5# – $14.99
    (must mention Craigslist Sales Ad)
    Sunny Tools
    580 Parrott St.
    San Jose, CA 95112    		Mon-Sat: 9AM-6PM
    Sun: CLOSED    		Exchange Only (as of February 2023)
    • Aluminum 20# – $24.99
    • Aluminum 10# – $19.99
    • Aluminum 5# – $14.99

    North Bay

    Vallejo Fire Extinguisher
    617 Solano Avenue
    Vallejo CA 94590
    (707) 643-5258    		Mon-Fri: 7:30AM-4:30PM
    Sat-Sun: CLOSED    		Refills (as of September 2021)
    • 5# – $12 + tax ($13.01)
    • 10# – $15.5 + tax ($16.80)
    • 20# – $21 + tax ($22.76)
    Hydrostatic Testing
    $30 test + $2 for O-ring
    NorCal Paintball
    1601 Enterprise Drive
    Fairfield CA
    (707) 447-7529    		Mon-Fri: 12PM-7PM
    Sat-Sun: CLOSED    		Refills (as of November 2020)
    $0.50 per oz, regardless of tank size
    Hydrostatic Testing
    $35, 2 week turnaround
    North Bay Gas
    41 Hamilton Dr Ste N
    Novato, CA 94949
    (415) 883-8289    		Mon-Fri: 8AM-5PM
    Sat-Sun: CLOSED    		Exchanges Only
    10# – $38.99
    20# – $44.90

    Sacramento

    River City Fire Equipment
    2419 Seller’s Way
    (916) 374-8295    		M-F: 7:30AM-3:30PM
    Sat-Sun: CLOSED    		Refills
    • 5#
    • 10#
    • 20#