Posted 7/28/2006 18:48 (#30706 - in reply to #30694) Subject: RE: Hardi Hyd. Ftg.
Might be British Standard pipe w/ parallel threads. BSPP The threads per inch are darn close to NPT. Then it seals with an O ring. McMaster has the adapters to NPT. Only a couple bucks apiece, so order some and see.