Federal Stone AQ CUT OUT 18" White AQ Series Coping with 6" x 18" DM Cut Out. Featuring the "World's Safest Pool Edge", the AQ® is our most popular coping series for commercial and residential pools. The raised safety edge is designed to ensure consistent benefits for both swimmers and patrons on the deck. In this series, 42 straights can be placed on a pallet to take advantage of pallet pricing.