An agricultural air seeder includes a tilling implement having a plurality of air lines. An air cart is coupled with the tilling implement, and includes a pneumatic distribution system with a plurality of air lines. A plurality of air line connections respectively interconnect between an air line associated with the tilling implement and an air line associated with the air cart. Each air line connection has a female connector and a male connector. Each female connector has an inside diameter with an annular groove, and a seal disposed within the annular groove. The male connector is positioned within the female connector and sealed with the seal.
