Federal Stone AQE C 12" x 12" x 2" 90^ White AQE Series Coping Corner. Featuring the "World's Safest Pool Edge", the AQE is most used for renovation projects when additional plaster and new tile is added to an existing pool. The AQE is also used in new construction when the bond beam is a true 12". In this series, 42 straights can be placed on a pallet to take advantage of pallet pricing.