Adaptor BSPT BPT to NPT Pipe Fitting 1/8"

New 1/8" BPT (male) to 1/8" NPT (female) pipe fitting adaptor. BPT are similar but not the same as NPT, so this adaptor can be used when fitting more common NPT accessories to the cooling system on Datsun Z cars. Note that 1/8" pipe fitting has an actual O.D. of about 3/8".  Choose from brass or aluminum fitting.