LIMITED STOCK ONLY - Save 70% on All Bidetmega Models

SUBSCRIBE AND SAVE - Enjoy Filter Replacements Hassle-Free

Continue Shopping
Subtotal
Savings
Shipping
FREE
Estimated Total
View cart Checkout
Bidetmega 400
$179.70
$599.00
$179.70
Sold out Coming Soon
Coway Bidetmega 400 Round Front view
Coway Bidetmega 400 Round Seat - Front View
Coway Bidetmega 400 Round Seat - Side View
Coway Bidetmega 400 Remote Control
Coway Bidetmega 400 Elongated Toilet Seat - Top View
Coway Bidetmega 400 Elongated Seat - Front View
Coway Bidetmega 400 Elongated Seat - Side View
Coway Bidetmega 400 Remote Control
Coway Bidetmega 400 Round Front view
Coway Bidetmega 400 Round Seat - Front View
Coway Bidetmega 400 Round Seat - Side View
Coway Bidetmega 400 Remote Control
Coway Bidetmega 400 Elongated Toilet Seat - Top View
Coway Bidetmega 400 Elongated Seat - Front View
Coway Bidetmega 400 Elongated Seat - Side View
Coway Bidetmega 400 Remote Control
Meet the Coway Bidetmega 400 video
Coway Bidetmega Installation Guide video
Products / Bidets

DEAL

Bidetmega 400

$179.70
$599.00
$179.70
Sold out Coming Soon

Shape:
Bidet shape guide
See the comparison chart for all Bidetmega Bidets
money back guarantee icon

90-day money back guarantee

free shipping icon

Free shipping

1 year warranty icon

1 year warranty extension

Advanced i-Wave Cleaning Technology
Only Bidetmega has 4-stage i-Wave technology to produce a comfortable, customizable wash with multiple modes.
Soft Start
A soft start ensures a gentle, hygienic experience, and allows the user to adjust temperature or pressure as needed.
Soft Start
A soft start ensures a gentle, hygienic experience, and allows the user to adjust temperature or pressure as needed.
Soft Start
A soft start ensures a gentle, hygienic experience, and allows the user to adjust temperature or pressure as needed.
Coway Bidetmega Three Stage Cleaning System
Triple Cleaning
Exclusive three-stage cleaning care system (water path + nozzle + toilet) gives you better health and peace of mind.
Woman Adjusting Bidet Settings
Customizable
Adjust to accommodate individual preferences for water temperature, water pressure, seat temperature and energy-savings.
Coway Bidetmega 400 Heated Seat
Heated Seat
Say goodbye to a cold seat forever with fully-customizable seat temperature settings.
Coway Bidetmega 400 Stainless Steel Nozzles
Dual Stainless Nozzle
Full stainless design for both rear and front nozzles.
Coway Bidetmega 400 Basic Mode, Active Mode, Soothing Mode
Multiple Modes
Bidetmega was specifically designed with multiple modes to work for every body. Each mode is designed to provide the perfect combination of water pressure, width, air bubbles and motion depending on the cleaning experience you desire.
Coway Bidetmega 400 Child Mode
Child Mode
Designed exclusively for the most sensitive skin.
Coway Bidetmega 400 with Night Light
Night Light
Find the toilet without worry with this Bidetmega 400 feature. This feature can be turned on and off based on your preference.
Coway Bidetmega 400 IPX5 Waterproof Technology
Waterproof
IPX5 (product) & IPX7 (Remote Control) technology is built to withstand a sustained, low pressure spray, making it easier to keep it safe and sanitary.
Coway Bidetmega 400 Eco Mode
Eco Mode
The built-in Eco Mode switches the bidet toilet to the standby mode when not in use to save the electric power and lower the electric consumption.
Coway Bidetmega 400 Remote Control with Braille
Braille
Easy to understand controls for the visually impaired.
Coway Bidetmega 400 Wireless Remote
All-New Wireless Remote
Improved, high-quality transmitter makes using your bidet more convenient and more sanitary.
Coway Bidetmega 400 Installation
Easy Installation
Attaches to most toilet bowls using provided parts and basic tools, without the need for a plumber.
90 Day Money Back Guarantee
90-Day Money Back
If you don’t absolutely love your Bidetmega, we’ll take it back. Guaranteed. Bidetmega also come with free shipping and a one year extended warranty.
Coway Bidetmega 400 Dryer
Separate Ducts
To maximize hygiene and efficiency, the ducts for washing and drying are kept separate.
Measure before you purchase
Toilets are generally uniform is scale, but these 4 measurements will ensure a perfect fit for your Bidetmega.
Mounting hole distance
1
Mounting hole distance

The length from hole to hole must be between 5.1 and 7.9 inches (130mm – 203mm).

4791672406151
"Bidetmega 400"
{"background_color":["#fafafa","#eaebec","#fafafa","#eaebec","#fafafa","#eaebec","#fafafa","#eaebec","#fafafa","#eaebec","#fafafa","#eaebec","#fafafa","#eaebec","#fafafa",""],"description":[" Improved i-wave cleaning technology for optimized customization,\r\nincluding basic, active move, soothing wash, and front modes.\r\n \r\n "," Exclusive three-stage cleaning care system (water path + nozzle + toilet)\r\ngives you better health and peace of mind.\r\n \r\n "," The bidet can be adjusted to accommodate individual preferences for\r\nwater temperature, water pressure, seat temperature and\r\nenergy-savings.\r\n \r\n "," Say goodbye to a cold seat forever with fully-customizable seat \r\ntemperature settings.\r\n \r\n "," Full stainless design for both rear and front nozzles.\r\n \r\n "," Coway Bidetmega was specifically designed with multiple modes to\r\nwork for every body. Smoothing Wash Mode + Rear Mode + Front Mode\r\n(Feminine) + Active Move Mode.\r\n \r\n "," Designed exclusively for the most sensitive skin.\r\n \r\n "," \u003cp\u003e\u003cspan style=\"color: rgb(70, 71, 72); font-family: AvenirLTStd-Roman, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: center; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;\"\u003eFind the toilet without worry with this Coway Bidetmega 400 feature. This feature can be turned on and off based on your preference.\u003c\/span\u003e \u003c\/p\u003e\r\n "," IPX5(product) \u0026 IPX7(Remote Control) technology is built to withstand a sustained, low pressure spray, making it easier to keep it safe\r\nand sanitary.\r\n \r\n "," The built-in Eco system switches the bidet toilet to the standby mode\r\nwhen not in use to save the electric power and lower the\r\nelectric consumption.\r\n \r\n "," Easy to understand controls for the visually impaired.\r\n \r\n "," Improved, high-quality transmitter makes using your bidet more\r\nconvenient and more sanitary.\r\n \r\n "," Attaches to most toilet bowls using provided parts and basic tools,\r\nwithout the need for a plumber.\r\n \r\n "," Coway Bidetmega separates the water and drying ducts for\r\nadditional hygiene.\r\n \r\n "," If you don’t absolutely love your Coway Bidetmega, we’ll take it back.\r\nGuaranteed. Coway Bidetmegas also come with free shipping and a\r\none year extended warranty.\r\n \r\n ",""],"icon":["https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/1._Bidetmega_(IWAVE)-v1607612204120.png?1600x495","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/2._Self_Cleaning_Electrolyzed_water-v1607612206040.png?517x517","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/3._Bidetmega_(custom_setting)-v1607612207771.png?517x517","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/6._Bidetmega_(Heated_Seat)-v1607612208161.png?517x517","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/4._Bidetmega_(stainless_steel_nozzle_for_400)-v1607612209934.png?788x443","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/5._Bidetmega_(modes)_(1)-v1607612211694.png?788x443","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/7._Bidetmega_(Child_Mode)-v1607612212180.png?517x517","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/8._Bidetmega_(Night_Light_only_for_400)-v1607612213861.png?517x517","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/10._Bidetmega_(IPX5_Water_Proof)2-v1607612215635.png?517x517","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/10._Bidetmega_(ECO)-v1607612216043.png?788x443","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/BrailleBidetmega400-v1607612217751.png?788x443","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/6._Bidetmega_(Remote_Control)-v1607612219275.png?788x443","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/12._Bidetmega_(Easy_Installation)-v1607612219648.png?788x443","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/11._Bidetmega_(Separate_Ducts)-v1607612221142.png?788x788","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/13._Bidetmega_(90day_money_back)-v1607612222879.png?788x788","https:\/\/cdn.accentuate.io\/4791672406151\/12780726780039\/Bidetmega_(Size_Measurement)-v1607612223278.png?1600x495"],"size":["full-width","1\/3","1\/3","1\/3","1\/2","1\/2","1\/3","1\/3","1\/3","1\/2","1\/2","1\/2","1\/2","1\/2","1\/2","full-width"],"title":["Advanced i-wave Technology","Triple Cleaning","Customizable","Heated Seat","Dual Stainless Nozzle","Multiple Modes","Child Mode","Night Light","Waterproof","Eco Mode","Braille","All-New Wireless Remote","Easy Installation","Separate Ducts","90-Day Money Back",""]}
{"name":["Rated Voltage","Operating Water Pressure","Power Cord","Certification","Dimension (W x H x D)","Product Weight","What’s in the Box"],"value":["\u003cp\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: AvenirLTStd-Roman; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;\"\u003e\u003c\/span\u003e120 V~ 60 Hz\u003cspan style=\"color: rgb(51, 51, 51); font-family: AvenirLTStd-Roman; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e","\u003cp\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: AvenirLTStd-Roman; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;\"\u003e\u003c\/span\u003e0.1 MPa ~ 0.68 MPa\u003cspan style=\"color: rgb(51, 51, 51); font-family: AvenirLTStd-Roman; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e","\u003cp\u003e47.2 in (1.2 m)\u003c\/p\u003e","\u003cp\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: AvenirLTStd-Roman; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;\"\u003e\u003c\/span\u003ecETL, IPX5\u003cspan style=\"color: rgb(51, 51, 51); font-family: AvenirLTStd-Roman; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e","\u003cp\u003eElongated: 16.59 x 5.31 x 21.2 in\r\n\u003cbr\u003eRound: 16.59 x 5.31 x 19.94 in\u003c\/p\u003e","\u003cp\u003eElongated: 17 lbs\u003cbr\u003eRound: 16.5 lbs\u003cspan style=\"color: rgb(65, 65, 65); font-family: sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;\"\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-family: AvenirLTStd-Roman; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e","\u003cp\u003e\u003cstrong\u003eInstallation Parts:\u003c\/strong\u003e 2 Anchor Screws, 2 Anchor Rubbers, 2 Anchor Washers, 2 Anchor nuts, 1 Bidet Hose, 4 Rubber Packing, 1 Installation Plate, 1 Fixing Slider, 1 T Connector (7\/8\u0026rdquo;), 1 T Connector (3\/8\u0026rdquo;), 1 Conversion Bolt\/Nut Set (3\/8\u0026rdquo;-1\/2\u0026rdquo;)\u003c\/p\u003e"]}
{"support":"\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003e\u003cstrong\u003ePDF FILES\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0351\/1864\/5383\/files\/1230773_BIDETMEGA_400_User_Manual_Packaged_19.10.08.pdf?v=1590191754\"\u003eUser Manual\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0351\/1864\/5383\/files\/Check_Before_You_Purchase.jpg?v=1591660943\"\u003eCompatibility Guide\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0351\/1864\/5383\/files\/BIDETMEGA-400R-Product-Installation-Paper-Guide_R0_19.07.18.pdf?v=1590193024\"\u003ePaper Template Sizing Guide (Round)\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0351\/1864\/5383\/files\/BIDETMEGA-400E-Product-Installation-Paper-Guide_R0_19.07.18.pdf?v=1590193286\"\u003ePaper Template Sizing Guide (Elongated)\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 24px;\"\u003e\u003cstrong\u003eVIDEOS\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/youtu.be\/8jZ14z3wCLc\"\u003eBidetmega 400 Product Overview\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/youtu.be\/5pgno9LqXXs\"\u003eBidetmega 400 Installation Guide\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=s4UUaeElhio\"\u003eBidetmega 400 Maintenance Guide\u003c\/a\u003e\u003c\/p\u003e"}
33436450619527
"Round"
{}
{}
{}
33436450652295
"Elongated"
{}
{}
{}
Bidetmega 400 details
Bidetmega 400 in your home
Want to share an image of your Coway product? Just tag @Cowaymega on Instagram. See some featured posts below!
Customer reviews
Shop all Bidetmegas

Disclaimers

1Coway air purifiers have been proven to trap dust, pollen, dander, viruses and bacteria in the air based on KCL (Korea Conformity Laboratories) testing.They have been tested in a 30㎥ size chamber according to the Korea Air Cleaning Association standard (SPS-KACA 002-132:2022 Modified) to measure the 0.01㎛ size of particle removal rate. It was tested on maximum airflow speed in normal room temperature and humidity conditions. The performance may vary in the actual living environment of customers.
→ Tested with Airmega Aim, 100, 150, 160, AP-1216L, AP-1512HH, AP-1512HHS, 200M, Icon, IconS, 230, 240, 250, 250 Art, 250S, 300, 300S, 400, 400S, ProX

299.97% of viruses, bacteria, fungi and pollen were verified to be removed from the air for Coway air purifiers which have Green True HEPA™ filter applied based on the Japan Food Research Laboratories(JFRL) testing according to JEM 1467 standard.
→ Tested with Coway Airmega AP-1512HH, AP-1512HHS, 250, 250 Art, 250S, 300, 300S, 400, 400S
→ All tested by JFRL and received above result within below time.

All tested by JFRL and received above result within below time.

- Virus: Tested with Escherichia coli phage ΦX174 NBRC 103405, 60 minutes
- Bacteria: Tested with Staphylococcus epidermidis NBRC 12993, 60 minutes
- Fungi/Mold: Tested with Penicillium citrinum NBRC 6352, 60 minutes
- Pollen: Tested with Cedar Pollen extract, 60 minutes

3Aerosol test conducted in a Biosafety level 3 laboratory with two Coway air purifier models, Coway Airmega 250 and 400 for removal of SARS-CoV-2 Aerosol by US based MRI Global, a not-for-profit laboratory and partner of US Department of Defense. The test was conducted in a 13.1ft3 chamber. Virus was aerosolized for 15 minutes and the product was turned on high for 2 minutes. Result showed each product effectively removed over 99.98% of the SARS-CoV-2 in 2 minutes. This is a result from a laboratory experiment condition and result may vary in different conditions. This result does not imply it kills SARS-CoV-2 or prevents the transmission of Covid-19. Coway Airmega 250S and 400S are identical to the tested models and has equal performance with an additional mobile connectivity function.

4The concentration of ammonia, acetaldehyde and acetic acid were proven to be removed within 30 minutes by FCG Research Institute, Inc. Human Life Science Lab. It is not a demonstration result in the actual use space. Not all odors and gases may be supported. → Tested with Coway Airmega 150, 160, AP-1512HH, AP-1512HHS, 400, 400S

5The coverage area of the air purifier is based on an area where the air cleaner can make two air changes per hour (ACPH). An air change per hour translates to how many times an air purifier can clean an area, assuming the height of a ceiling to be 8 ft, in one hour. Therefore ** means two air changes per hour means that the cleaner can clean the area once every 30 minutes and * means air changes per hour means that the air purifier can clean the area once every 60 minutes.

10Terms and conditions apply. Discounts, including promotions, coupons, bundle discount and subscription discount, cannot be stacked on top of other coupons. During promotional periods, discount codes will not be able to be applied to orders. Promo codes may apply to products only—filters, accessories, and new products within 3 months of the release date are not included.