Cart “3/8” Hose Barb by 1/2″ MNPT” has been added to your cart. Continue shopping “Airlock – Three Piece” has been added to your cart. Continue shopping “Tartaric Acid (2 Ounce)” has been added to your cart. Continue shopping Remove item Thumbnail image Product Price Quantity Subtotal × 3/8” Hose Barb by 1/2" MNPT $4.00 3/8” Hose Barb by 1/2" MNPT quantity $4.00 × Airlock - Three Piece $1.50 Airlock - Three Piece quantity $1.50 × Tartaric Acid (2 Ounce) $2.00 Tartaric Acid (2 Ounce) quantity $2.00 Update cart Cart totals Subtotal $7.50 Shipping Enter your address to view shipping options. Calculate shipping Country / region Select a country / region… United States (US) State / County City: Postcode / ZIP: Update Tax $0.00 Total $7.50 Proceed to checkout