White, rv all plumbing vent cap, separate cap fits up to a 2" pipe, spring tension attachment, which eliminates the need to replace the entire vent just because of a lost cap top, made from durable polyethylene & finished off with chimasorb for uv protection, 2 piece model fits 1-1/4" & 1-1/2" pipes, snap on cap fastens with new screw in design.