This is the safety over pressure plug part that threads into the lid.
The screw portion is 7/16" in diameter.
Shipping is available to anyone not local.
This item is listed on multiple sites.
We accept Paypal, Money Order (from USPS ONLY!) and Credit cards accepted through Paypal only!
SHIPPING WITHIN THE U.S. ONLY!
Returns only accepted within 7 days of receipt of item provided you contact us first. Buyer pays for all return shipping.