O-Ring Seal Screw Cap (Attachment Loop), brown Azer Scientific- brown d type ring seal With Bottom Price ,- Screw cap for microtubes - O-ring seal screw cap - Attachment loop - CertifieDoor Bottoms & Sweeps - Do It BestM-D Heavy-Duty Aluminum And Vinyl Door Sweep - 05389. 36" ALUM EXV DOOR SWEEP. Item # 265063. Model # 05389