Click to expand Tap to zoom KVM Energy Bleed and Drain valve 1/2" by KVM Energy - Original Spare Part Bleed and Drain valve 1/2" Quantity Add to Cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.