Click to expand Tap to zoom Kidde KA-F2 AC Plug In Adapter For Retrofit Fit From Firex To Kidde (21028270) SKU 21028270 by Kidde Original price $3.17 - Original price $3.17 Original price $3.17 | / Quantity Add to cart More payment options 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. Usually Ships in 5-10 Business Days