This is the same "301" with a new number; in order to distinguish "SS NIles" top quality stoppers from the imitators my products will have new numbers; if it doesn't say "SS Niles", it is not my new improved and better quality stainless.
See samples made by my customers in the Artists' Gallery.
- Solid FDA food-grade stainless steel
- FDA food grade nitrile O-rings, 3 sizes to fit more bottles.
- Lifetime Guarantee.
- Made in the US
3/8" x 16 threaded stud 1/2" long, one piece with stopper. Top diameter of stopper is 13/16", 1 1/2" total height without stud. Use an 5/16" or 9mm drill bit. You can also use a 21/64" bit.