After-sale service for RO system

International shipping
We are doing the sales in North America, All items free shipping in US, 60$ Shipping discount in CA,MX(only for RO system order). Beside these 3 countries, please contact with us, it is manageable.
Return policy
Return any of our products--no questions asked--within 30 days of purchase. We will charge the postage if the products are not defective.
Do I have to call professional to intall this system?
In most cases, our customers installed the system all by themself with our installation video on youtube. But you might need to get the faucet hole drilled by professional, especially when you were dealing with granite or other specific materials that require a special type of drill bit to deal with.