Seadog Drain Tube 1"x2-3/8" Brass 520220-1 by Seadog $4.77 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Seadog Drain Tube 1" x 2-3/8" #354-5202201 Pipe Size: 1" inside diameter x 2-3/8" Length. Formed Brass With Flanged End.