Check the listing for details. 2pcs NEW Ozone PU tubing with diffuser stone for ozone generator. Color: Does not apply, Condition: New. Listed at 5.99 USD. 2pcs NEW Ozone PU tubing with diffuser stone for ozone generator Shipping Description：Item will be shipped by airmail with tracking number (ship to USA by USPS epacket delivery ) within 24 hours(1 working day) after full payment is received.A notification email of dispatch will be sent to buyer after item is posted. Please email us if you don't receive our email after 3 days of full payment sent.Return Description：In the unlikely event that a return is request, all returns must include all original items undamaged, in re-saleable condition, all original packaging including manuals, warranty forms, etc. Shipping and handling fees are not refundable. Buyer is responsible for shipping costs incurred shipping products back.