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Consumer Reports standouts across laundry and refrigeration that shoppers consistently love.
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Fan-favorite reliability keeps return rates low across LG's broad appliance lineup.
Features:
Why Buy LG SIGNATURE SDNTH981S FlushFit™ Dishwasher
Frequently Asked Questions
Q: What is the SDNTH981S dishwasher?
A: The SDNTH981S is a premium LG SIGNATURE FlushFit™ dishwasher designed for high-end kitchens, combining ultra-quiet performance, advanced cleaning technology, and a seamless built-in look.
Q: What makes FlushFit™ design special?
A: FlushFit™ allows the dishwasher to sit perfectly flush with cabinetry, creating a clean, uninterrupted built-in appearance ideal for modern kitchens.
Q: How quiet is this dishwasher?
A: It operates at just 39 dB with LoDecibel™ technology, making it extremely quiet and well suited for open-concept living spaces.
Q: How effective is the cleaning performance?
A: The QuadWash® Pro system uses multi-angle spray arms to deliver up to 38 percent more cleaning power, helping remove tough food residue without pre-rinsing.
Q: Does it dry dishes well?
A: Yes. Dynamic Heat Dry™ combined with AutoVent™ Dry improves airflow and moisture removal, leaving dishes dry and ready to use.
Q: What is the 1-hour wash and dry cycle?
A: It is a fast cycle designed to clean and dry dishes in about one hour, making it ideal for quick turnarounds during busy days or entertaining.
Q: Does it have special cleaning zones?
A: Yes. BlastZone™ Bottle Wash provides targeted high-pressure cleaning for bottles, cookware, and heavily soiled items.
Q: Is it energy efficient?
A: Yes. The dishwasher is ENERGY STAR® certified, helping reduce energy consumption while maintaining strong performance.
Q: Does it have smart features?
A: Yes. It includes Wi-Fi connectivity with LG ThinQ®, allowing you to monitor cycles and receive notifications remotely.
Q: What is the capacity and interior setup?
A: It features a third rack and adjustable racks, allowing flexible loading for utensils, cookware, and larger items.
Pros and Cons of LG SIGNATURE SDNTH981S FlushFit™ Dishwasher
Pros
Cons
Conclusion
The LG SIGNATURE SDNTH981S FlushFit™ Dishwasher is an excellent choice for homeowners seeking a luxury, ultra-quiet, and high-performance dishwasher with cutting-edge cleaning and drying technology. Its seamless built-in design, powerful QuadWash® Pro system, and fast 1-hour cycle make it ideal for modern kitchens and frequent entertaining. While the premium price and advanced features may not suit every buyer, it stands out as a top-tier dishwasher for those prioritizing design, performance, and convenience.
| Width | |
| Exterior Width | 24" |
| Width | 23 3/4" |
| Cutout Width | 24" |
| Depth | |
| Depth | 23 3/4" |
| Cutout Depth | 24" |
| Height | |
| Height | 33 5/8" |
| Cutout Height | 33 7/8" |
Features:
Why Buy LG SIGNATURE SDNTH981S FlushFit™ Dishwasher
Frequently Asked Questions
Q: What is the SDNTH981S dishwasher?
A: The SDNTH981S is a premium LG SIGNATURE FlushFit™ dishwasher designed for high-end kitchens, combining ultra-quiet performance, advanced cleaning technology, and a seamless built-in look.
Q: What makes FlushFit™ design special?
A: FlushFit™ allows the dishwasher to sit perfectly flush with cabinetry, creating a clean, uninterrupted built-in appearance ideal for modern kitchens.
Q: How quiet is this dishwasher?
A: It operates at just 39 dB with LoDecibel™ technology, making it extremely quiet and well suited for open-concept living spaces.
Q: How effective is the cleaning performance?
A: The QuadWash® Pro system uses multi-angle spray arms to deliver up to 38 percent more cleaning power, helping remove tough food residue without pre-rinsing.
Q: Does it dry dishes well?
A: Yes. Dynamic Heat Dry™ combined with AutoVent™ Dry improves airflow and moisture removal, leaving dishes dry and ready to use.
Q: What is the 1-hour wash and dry cycle?
A: It is a fast cycle designed to clean and dry dishes in about one hour, making it ideal for quick turnarounds during busy days or entertaining.
Q: Does it have special cleaning zones?
A: Yes. BlastZone™ Bottle Wash provides targeted high-pressure cleaning for bottles, cookware, and heavily soiled items.
Q: Is it energy efficient?
A: Yes. The dishwasher is ENERGY STAR® certified, helping reduce energy consumption while maintaining strong performance.
Q: Does it have smart features?
A: Yes. It includes Wi-Fi connectivity with LG ThinQ®, allowing you to monitor cycles and receive notifications remotely.
Q: What is the capacity and interior setup?
A: It features a third rack and adjustable racks, allowing flexible loading for utensils, cookware, and larger items.
Pros and Cons of LG SIGNATURE SDNTH981S FlushFit™ Dishwasher
Pros
Cons
Conclusion
The LG SIGNATURE SDNTH981S FlushFit™ Dishwasher is an excellent choice for homeowners seeking a luxury, ultra-quiet, and high-performance dishwasher with cutting-edge cleaning and drying technology. Its seamless built-in design, powerful QuadWash® Pro system, and fast 1-hour cycle make it ideal for modern kitchens and frequent entertaining. While the premium price and advanced features may not suit every buyer, it stands out as a top-tier dishwasher for those prioritizing design, performance, and convenience.
| Width | |
| Exterior Width | 24" |
| Width | 23 3/4" |
| Cutout Width | 24" |
| Depth | |
| Depth | 23 3/4" |
| Cutout Depth | 24" |
| Height | |
| Height | 33 5/8" |
| Cutout Height | 33 7/8" |
LG ThinQ 2+1 Year Limited Warranty Promotion
Enjoy a total of 2 year limited warranty on select LG Studio and LG Signature appliances
Purchase an eligible LG Studio/LG Signature-branded product(s) between April 9 - 12/31/2026 and you may be able to redeem an additional 1 year limited warranty with the ThinQ app (valued at $185)
See Rebate for more details
May take up to 14 days for registered product warranty to reflect 2 years on the LG ThinQ app
2 Year Parts and Labor, 5 Year Parts on Control Board and Rack, 10 Year on Direct Drive Motor
Returns accepted within 30 days of delivery. Item must be in original packaging and unused condition.
Split your purchase into easy payments over time—interest-free or with simple interest depending on your plan and eligibility.
We offer free in-home delivery to most serviceable zip codes for orders over $799.
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Free 1 Year Extended Warranty
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Manufacturer rebates, instant savings, and product discounts — all in one place.
Choose a 3- or 5-year protection plan—get 50% back if you don't use it.
If you find a lower price on an identical item from a local competitor or select online retailers, we will match it.
