On Tue, 20 Oct 2009 11:05:43 -0700, "Capt. JG"
wrote:

"Lew Hodgett" wrote in message
.. .

"CS" wrote:

I am looking at getting some water filters, 20 inch housings, with 3/4
inch NPT female connections in plastic tops. Can I get away with
screwing in 3/4 BSP taper male brass compression fittings, using a
good wind of PTFE tape??

No.

NPT is a tapered thread.

BSP is a straight thread.

You cann't get there from here.

Lew

Actually, it's possible to get an adapter it seems...

http://www.metricmcc.com/pricecatalog/8-849.htm
http://www.suspensionconnection.com/...con/90001.html

I was curious, so I looked it up.

Actually old chap, under the use and custom policies of Usenet you are
cheating :-)
Cheers,

Bruce
(bruceinbangkokatgmaildotcom)