Top offer
30% off the bidet and water softener, 50% off the AP-2021A air purifier
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- Purchase discount, applied automatically; ends Oct 28, 2026.
- Source: Coway's sale page
Coway Discount Codes & Deals
6 offers · updated · save up to 30%
No working Coway discount code right now. Here's how to save: 6 deals below, and how Coway discounts work.
Current Coway deals
Water purifier rentals at $9.99/mo for the first 3 to 6 months
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- Source: Coway's sale page
Get Coway codes by email
$19.99/mo for 8 months on select purifiers
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- Source: Coway's sale page
$29.99/mo for 10 months on ice water and air purifiers
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- Source: Coway's sale page
Free shipping
Free shipping for all orders with Coway right now!
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SUBSCRIBE AND SAVE - Enjoy Filter Replacements Hassle at Coway
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How Coway discounts work
Coway doesn't use promo codes on its US site. Its promotions are built into the price, and the discounted price is applied automatically at checkout.
Coway runs time-limited promotions on water purifier rentals and purchases, so check its offers page for the current one before you order.
About Coway
Coway rents water purifiers, air purifiers, bidets and water softeners for a monthly fee that covers delivery, installation and filter service, and it also sells replacement filters.
Before chasing a discount, confirm you live within 70 miles of a Coway branch, since service stops there, and that you can rent with an SSN and ACH direct debit.
Coway was founded in Korea in 1989, and its US arm, Coway USA, was set up in Los Angeles in 2007 and serves 15 US locations. The parent company reports operations in 50+ countries and an R&D staff of 300 people, and its product designs have won awards including iF, reddot, IDEA, Pin Up and Good Design.
The water range spans countertop, standing and under-sink purifiers, with hot-and-cold and ice-making models such as the Ice Stand 3.0 and the Core Plus. Air purifiers come in the Square Fit, Noble and Ultra lines, and the Body Care range covers the BAS42-B bidet in elongated and round shapes plus a water softener. Renters pick between Home Visit Service, where Heart Service technicians handle upkeep, and Self Service, where filters are mailed out for customers to swap themselves.
Past Coway sales
- Rental and purchase promotion Usually: Sep 27 - Oct 28, 2026 (orders installed by Oct 31, 2026) Announced on Coway's site,
When shoppers look for Coway coupons
Coway coupon searches peak in July, about 1.8× a typical month, and dip lowest in February.
How long does Coway shipping take?
A local service center calls within 2-3 business days to book it; basic installation is free, while countertop drilling costs $100.
What is Coway's return policy?
Bought filters go back within 30 days if pre-approved, unused and boxed, with return shipping and the original delivery cost on you.
More about shopping at Coway
- Rental plans
- The monthly fee depends on contract length and an optional $0 or $100 registration fee, and it includes Heart Service filter changes and maintenance.
- Cancelling a rental
- You can cancel or get a refund within 3 days of installation, but leaving early after that costs 60% of the daily fee per unused day.
- Warranty
- Rented units are covered for the whole rental period, and purchased units carry a one-year warranty.
- Moving house
- Relocating within the service area costs $50 to uninstall and $50 to reinstall, and a contract can be handed to another person.
- Late payment
- Paying a rental late adds a $5 fee to the next month.
- Current promotion
- A rental and purchase promotion runs Sep 27 - Oct 28, 2026, for orders installed by Oct 31, 2026.
From Coway's own pages, read Oct 13, 2026.
Sources: Coway FAQ, Coway returns policy, Coway sale page
How to use a Coway discount code
- Coway's store runs on Shopify, so a discount code goes in the box on the checkout page's order summary.
- Most Coway savings arrive as promotional monthly rates rather than codes, such as water purifier rentals at $9.99/mo for the first 3 to 6 months.
- Read the contract length and the registration fee next to any promo rate, because both set what you pay each month.
- Note the installation deadline too: the current promotion counts orders installed by Oct 31, 2026, and the service center's call comes 2-3 business days after you order.
More ways to save at Coway
- Paying on time avoids the $5 late fee.
- When a contract ends, Coway offers a discounted rate to rent the same or another product, and a finished contract can be cancelled without penalty.
- Buyers who'd rather own a unit can add a membership service with at least a 1-year subscription for ongoing care.
- The current promotion also lists 30% off the bidet and water softener.
Coway questions, answered
Can a Coway rental be cancelled?
Rental orders can be cancelled or refunded within 3 days of installation. After that, ending early costs 60% of the daily fee for each unused day.
Is Coway installation free?
Basic installation is free with a rental plan, while drilling a countertop costs $100.
What does renting from Coway require?
Renting needs an SSN and ACH direct debit. Service is only available within 70 miles of a Coway branch.
What happens when a Coway contract ends?
A finished contract can be cancelled without penalty. Customers can also rent the same or another product at a discounted rate.
Can Coway filters be returned?
Filters can come back within 30 days of the order date if pre-approved, unused and in original packaging. Defective items get a prepaid label and a full refund.
What does moving cost with a Coway rental?
Moving within the service area costs $50 to uninstall and $50 to reinstall. Contracts can also be transferred to another person.