Flexible hose slap connectors? I have be checking through a ScrewFix catalogue to buy flexible...

I have be checking through a ScrewFix catalogue to buy flexible hose slap connectors for a sink and bath. The directory states a Dia of 15mm[which I think is the copper pipe diameter] a BSP of partly or three quarter inch and a bore of 10 or 13 mm[ which I guess is the internal diameter of the hose]. What is the BSP and which do I choose?
Anyone know a honest place to find a...
Answers:    1/2 inch Bsp for basin & 3/4 inch BSP for the hip bath.
Can anyone give support to me numeral out...
BSP= British standard pipe thread 15mm ( 1/2" ) for sink or basin & usually 22mm ( 3/4" ) for a tub. 1/2" is the tap thread & 15mm is the copper pipe size. 3/4" in good health need I read aloud more!
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