This listing is for a lot of 30 different couplers. Some are male; most are female ends. All of them appear to have been used. There are a variety of brands including Pioneer, Safeway, DNP, and Inteva. There are a few that have some surface rust somewhere on them. None of them appear to have any major damage (cracks or other broken pieces). Included: 1x DNP PDS06F-1/4 NPT G5 6x DNP PBV06F-1/4 NPT C8 4x DNP PBV10F-3/8 NPT B7 1x Faster ANV38 NPTF 5C 3x Inteva ISOBDN10 1x P SM-502-8FP 1x Pioneer 4010-3 2x Pioneer 4010-3P 1x Pioneer 4050-2P 1x Pioneer 4050-3P 1x Pioneer 4050-4 2x Pioneer 4250 2x Pioneer 8450-16 1x Safeway S25-4-7 1x Safeway S25-15 1x Snap-Tite 72C4