Extended Mbspp-Fbspp Bushing

That extra body length is exactly what this fitting is built for. At 57.2mm long, it gives you noticeably more reach than a standard bushing, so when two connection points don't sit flush against each other, this fills that gap without needing additional adapters or fittings in between. Both ends are G 1-11 BSPP, one male and one female, so it keeps the same thread spec all the way through on a 1-inch line.

That's correct. This bushing adapts a 1" male BSPP to a 1" female BSPP connection in-line.

With a 57.2 mm body length, it is the extended style, meant to give you extra spacing compared to a standard bushing. Both ends stay the same size at G 1-11 BSPP, so you gain reach without changing thread size.