Test First - Samples are free. Purchases from our online store are not returnable unless defective. Read our Terms and Conditions. All dimensions are approximate. Manufacturing tolerances are available upon request. Taxes displayed are only an estimate as tax rates among states and municipalities change frequently. Prevailing tax rates will be applied to the credit card and displayed on your order confirmation. Tax exemption will be applied only if we have a copy of the exemption certificate on hand. The order confirmation will confirm the status. If you have concerns, please leave your order in the cart and contact firstname.lastname@example.org. Quantity price breaks may be available on some items when multiple boxes are ordered. The order confirmation will indicate the lower price if applicable. If you would like to inquire about quantity price break thresholds, please contact Customer Service at (800) 949-1141 with the part numbers you wish to purchase. Not all products are subject to price breaks.