Fits Most 3-Inch 3.5-Inch Flush Valve Opening 2-Piece Toilet Tanks. Hibbent Product Details 1.Tank to Bowl Coupling Kits: Universal Tank-to-Bowl gasket replacements with tank to bowl bolts. 2.Fits 3" flush valve opening: The 3 inch Tank to Bowl Gasket and Hardware Kit is universal to fit most 3 inch two-piece toilet tanks. 3.Tank To Bowl Bolts: The included hardware kits are brass to ensure long lasting. Special designed extra long nuts are for easy installation. 4.Longest Lasting Materials: Tank-to-bowl gasket made from long lasting sponge rubber construction. 5.Easy to install: Including totally 3 sets toilet tank to bowl bolts and 2 size of gaskets(3 inch +3.5 inch) for fit flush valve opening. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.