Agratech NW Ltd > Metal Pipe Fittings > Brass Male x Female Reducing Bushes BSP Thread 3/8" - 2" Sizes
Stainless Steel 304 Female BSP Threaded End Cap Pipe Fitting Tubing Stop 1/4"~2" | eBay
G Thread (BSP) to NPT (US Thread) Pipe Fitting Adapter with G Thread Bonded Washer Seal Included (1/2" FG x 1/2"MNPT (2 Pieces)) : Amazon.co.uk: DIY & Tools
1/2 3/4 Inch Thread Pipe Plumbing Coupler Chromed Fittings Muff