*PLUMBERSSTOCK EXPERT* responded:
Good day, John! We appreciate you asking about our Arrowhead Brass PK2016 16" O-Ring Seal One-Piece Bonnet Stem Assembly. Having the spring loaded check, you will need a new complete stem replacement. The Arrowhead PK2014SP would be correct if your end to end stem measurement is 18-1/4 inches with the check assembly depressed and the handle removed. Kindly check and if you wish to purchase the PK2014SP, please feel free to contact our customer support specialists at 435-868-4020 or through email at firstname.lastname@example.org for a fast and easy transaction. Thank you for shopping with plumbersstock.com - the perfect site to find high-quality products at low, low prices!