TL37-M 2 pack Ag Quick Coupler Male Nipple - Poppet Style Hydraulic Tractor Coupling - Iso5675 1/2" Standard size Most Agricultural Tractors and Machinery 2 pack Male coupler for most ag tractor applications Fits most ag tractor and implement hydraulic couplers 1/2'' NPT ISO5675 Modern poppet style valve Pioneer agricultural interchange