The B&G Blue Hose S/A, Delivery System Part #24000028 is a replacement hose for the B&G Accu-Spray Sprayer (24000040) and would not fit a standard B&G sprayer.
The B&G Blue Hose S/A, Delivery System Part #24000028 is a replacement hose for the B&G Accu-Spray Sprayer (24000040) and the B&G AccuSpray Professional (24000100) that comes with the B&G Extend-Ban gun with 4-way and fine spray tips