These are the genuine replacement columns for the Zen-O Lite portable oxygen concentrator. Easy to remove and replace, they come in a pair for maintaining your POC at optimal performance.
1 year manufacturer warranty against defects.
RETURNS ON NEW ITEMS
You may return most new, unopened items within 30 days of delivery for a full refund less any shipping costs. Items must be returned in their original packaging and in new, resalable condition. If we made a mistake in shipping, we'll cover the shipping cost of returning the product to us. Special order items may not be returned. We will not accept returns on merchandise that has been opened, used, is missing the serial number or UPC from the packaging, or is returned more then 30 days after delivery. Due to the personal nature of Breast Pumps and Bathroom products, no returns will be allowed if product package has been opened. If you would like to make a return or exchange, you must contact us by phone to receive an RMA number before returning your items. Items returned to us without notification will not be accepted.