Hooshing 2PCS Brass Pipe Fitting Reducer Adapter 3/8" NPT Female x 1/4" NPT Male Reducing Adapter - - Amazon.com
Garosa Attrezzi per filettatura in PVC, 1/2"3/4" 1"NPT Set di matrici manuali Utensili manuali per tubi NPT Set di matrici tonde Tubi per filiera,Tocca E Muori : Amazon.it: Fai da te
Boeray 1/4 Inch NPT Male Thread to 1/8 Inch NPT Female Thread Brass Pipe Fitting, Reducing Hex Head Hose Bushing Adapter Convert Pack of 2