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Watts Premier WP164020 DLA-D Drain Line Plumbing Adapter for Garbage Disposal, Universal, White

4.6 4.6 out of 5 stars 543 ratings

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  • Provides a code listed alternative to the use of the drain saddle for fast easy installation on all garbage disposals where the dishwasher drain inlet is located on all disposals
  • Converts for installation with or without a dishwasher drain line connection, uses standard plumbing fittings to meet nationwide code requirements and a universal adapter accommodates 1/2"", 5/8"", 3/4"", and 7/8"" dishwasher drain hose with a 3/8"" RO drain line
  • Kit includes: (1) Drain Line Adapter with Push-in Fitting and barb, (1) Hose Coupler, and (2) Marine Stainless Steel Hose Clamps; smaller barbs can be cut off for 3/4"" and 7/8"" drain line installations
  • Quick Connect for air gap faucets and unique design reduces noise and prevents plugging
  • Easy to install directly into a garbage disposal and does not require drilling into current plumbing for installation and proper drain line performance, kindly measure your product dimension and confirm the same before installation
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Customer ratings by feature

Easy to install
4.5 4.5
Value for money
4.1 4.1

From the manufacturer

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Watts Premier WP164020 DLA-D Drain Line Plumbing Adapter for Garbage Disposal, Universal, White


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Product Description

Product Description

Designed for installation on all garbage disposals where the dishwasher drain inlet is located. The DLA-D provides a code listed alternative to the use of the drain saddle for fast easy installation on all disposals. Due to plumbing and installation differences, some RO systems during the water production phase can be noisy. Installation of this DLA-D drain line adapter will effectively reduce this noise during water production. This is easy to install directly in to a garbage disposal. No drilling in to current plumbing needed for installation and proper drain line performance. Unique design helps prevent plugging of the drain line. Comes with everything needed to install directly in to your under sink drain plumbing. Kit includes: One (1) Drain Line Adapter with Push-in Fitting and barb; One (1) Hose Coupler, Two (2) Marine Stainless Steel Hose Clamps.

From the Manufacturer

Designed for installation on all garbage disposals where the dishwasher drain inlet is located. The DLA-D provides a code listed alternative to the use of the drain saddle for fast easy installation on all disposals. Due to plumbing and installation differences, some RO systems during the water production phase can be noisy. Installation of this DLA-D drain line adapter will effectively reduce this noise during water production. This is easy to install directly in to a garbage disposal. No drilling in to current plumbing needed for installation and proper drain line performance. Unique design helps prevent plugging of the drain line. Comes with everything needed to install directly in to your under sink drain plumbing. Kit includes: One (1) Drain Line Adapter with Push-in Fitting and barb; One (1) Hose Coupler, Two (2) Marine Stainless Steel Hose Clamps.

Customer reviews

4.6 out of 5 stars
4.6 out of 5
543 global ratings

Customers say

Customers like the performance, ease of installation, connection, and leakage of the plumbing fixture. For example, they mention that it works great, it saves time, and that the instructions are easy to understand. That said, they say it's a great product for hooking up an RO drain to a dishwasher discharge. Opinions are mixed on fit and noise.

AI-generated from the text of customer reviews

39 customers mention33 positive6 negative

Customers like the performance of the plumbing fixture. They say it works great, the Watts OS process works great and completely solves the problem. Some mention that the filter system is fantastic and that it saves time.

"...It works without any problem as long as it is not clogged. If you want to be safe, you could get an adapter...." Read more

"...Worked like a charm and got rid of the gurgling noise (drain line was previously installed between garbage disposal and p trap)...." Read more

"I used for RO waste water drain. It fits perfectly and saved my time. No leak and very stable after installation." Read more

"Watts OS process works great, but drain from flushing filter became plugged and drain water flowed out air gap...." Read more

22 customers mention22 positive0 negative

Customers find the installation of the plumbing fixture to be easy. They mention that the instructions are easy to understand, and the product is easy to use. Some say that the attachment makes installing the RO drain line a snap, and that it makes service and testing much easier.

"...It fit exactly as promised. Instructions were clear and easy to follow. This only works with an existing disposal...." Read more

"Great product! Easy to install. Most importantly, it works!" Read more

"...Took about 15 minutes to install...." Read more

"...This adapter allowed me to put them on one drain. Easy to install. Came with all the hardware to connect." Read more

12 customers mention12 positive0 negative

Customers like the connection of the plumbing fixture. They say it's great for hooking up an RO drain to a dishwasher discharge, a perfect solution for R/O systems, and a gravity drain. Some mention that it works well and fixes their drain issue.

"great for hooking up an RO drain to a dishwasher discharge...." Read more

"Great solution to tie into plumbing for water filter. Make sure to use the right size tubing. Has held up great now over a year." Read more

"Works well and fixed my drain issue." Read more

"Would buy again, great way to attach water filter" Read more

11 customers mention8 positive3 negative

Customers like the leakage of the plumbing fixture. They mention that it works great and there are no leaks.

"...No leaks" Read more

"This item was a great purchase with zero leakage as long as you buy the right part to go with it...." Read more

"...was going directly to the drain and got clogged, causing leak at the faucet." Read more

"I used for RO waste water drain. It fits perfectly and saved my time. No leak and very stable after installation." Read more

11 customers mention11 positive0 negative

Customers are satisfied with the quality of the plumbing fixture. They mention that it is easy to install, has good quality, and has held up great over a year. Some say that the product is expensive but worth it.

"...I don't see why two would be necessary. It is good and water tight even before I used the clamp." Read more

"Great product! Easy to install. Most importantly, it works!" Read more

"...It fits perfectly and saved my time. No leak and very stable after installation." Read more

"Awesome product good quality and easy to install...." Read more

5 customers mention5 positive0 negative

Customers like the appearance of the plumbing fixture. They say it's a great design for an air gap reverse osmosis water system, and much better than a saddle.

"Great design for an air gap reverse osmosis water system. Hard to find this little guy but it perfectly fit my needs under the kitchen sink." Read more

"excellent and much better than a saddle" Read more

"Just the perfect piece of plumbing...." Read more

"Nice and easy to use...." Read more

15 customers mention8 positive7 negative

Customers have mixed opinions about the fit of the plumbing fixture. Some mention that it fits perfectly and saves their time, while others say that it didn't fit for their application, the reverse osmosis drain tube doesn't fits tightly into the fitting, and the adapter is fairly sizable.

"Perfect little device for the job. It fit exactly as promised. Instructions were clear and easy to follow...." Read more

"...several days to install an RO system only to find out the drain line attachment wont fit on the pipes I have...." Read more

"...It feels better than the supplied connector. The wider end fits nicely with this adapter but I still need some Teflon tapes on the narrow end to..." Read more

"...the adapter is fairly sizable, and this lead to moving some of the tubing around to accommodate the size and avoid bends or kinks in the dishwasher..." Read more

7 customers mention4 positive3 negative

Customers are mixed about the noise of the plumbing fixture. Some mention that it makes the system quiet, while others say that it solved air gap leak and gurgling noise.

"...Also, it makes the system quiet. Before installing this, I had a simple drain tap, I could hear the dripping when the RO system was running...." Read more

"...It does make a bit more noise than it used to...." Read more

"...Worked like a charm and got rid of the gurgling noise (drain line was previously installed between garbage disposal and p trap)...." Read more

"...When it worked, it made a loud gurgle sound dropping into trap...." Read more

RO water and dishwasher drain clean install
5 Stars
RO water and dishwasher drain clean install
I switched from a double sink to a single deeper sink where the dishwasher drain was connected to one side of the sink and the RO drain was connected to the other side of the sink. Switching to a single drain and deeper sink allowed limited space so I decided to use this adapter and it worked out great
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Top reviews from the United States

Reviewed in the United States on November 29, 2020
Reviewed in the United States on June 29, 2016
3 people found this helpful
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Reviewed in the United States on October 4, 2023
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5.0 out of 5 stars RO water and dishwasher drain clean install
Reviewed in the United States on October 4, 2023
I switched from a double sink to a single deeper sink where the dishwasher drain was connected to one side of the sink and the RO drain was connected to the other side of the sink. Switching to a single drain and deeper sink allowed limited space so I decided to use this adapter and it worked out great
Images in this review
Customer image
Customer image
Reviewed in the United States on November 28, 2022
Reviewed in the United States on October 12, 2016
6 people found this helpful
Report
Reviewed in the United States on May 11, 2020
3 people found this helpful
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Reviewed in the United States on August 29, 2020
Reviewed in the United States on November 23, 2021
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5.0 out of 5 stars Worked like a charm!
Reviewed in the United States on November 23, 2021
Bought this to install drain line of my RO unit to drain into my garbage disposal. Worked like a charm and got rid of the gurgling noise (drain line was previously installed between garbage disposal and p trap). Managed to trim off excess tubing using an utility knife.
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Top reviews from other countries

Dan
5.0 out of 5 stars Perfect
Reviewed in Canada on February 22, 2016
Amazon Customer
5.0 out of 5 stars Useful piece
Reviewed in Canada on October 21, 2020
Gumshoe
4.0 out of 5 stars Works good
Reviewed in Canada on September 13, 2023
Dan W
4.0 out of 5 stars Works well with additional connector.
Reviewed in Canada on March 26, 2023
One person found this helpful
Report
Amazon Customer
3.0 out of 5 stars So far it works but it is not so easily to install
Reviewed in Canada on May 25, 2016