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Delivery estimate: 1–17 business days (orders process in 0–10 business days, then 1–7 business days in transit). Exact shipping options and rates are shown at checkout. Shipping policy
Returns: 30-day returns on eligible items — unused, uninstalled, in original packaging. Returns policy
Air injection allows the user to agitate the fluid during flushing to clean the system faster and more effectively. It has been shown to reduce flushing time by up to 75%.