The B&G 5700-SS Stainless Steel Injector Needle can be used for void injections and injecting product into drilled holes in wood.
There are no B&G parts that will work on the Chapin line of sprayers and as far as we know there are no adapters that can be utilized to make them work.
The B&G 5700-SS Stainless Steel Injector Needle will fit in a 4 way crack and crevice tip of a B&G standard wand, you should not need anything else.
According the B&G, the B&G 5700-SS Stainless Steel Injector Needle can only be used to apply liquid solutions and is not intended for foaming applications. The B&G Versafoamer HH 1 Gallon Foamer would be a good choice for foaming applications.Â