Vertical-to-Horizontal Linear Shower Drain Kit – Includes ABS Side Discharge Adapter | SereneDrains

The SereneDrains Linear Shower Drain Kit with Horizontal Side Discharge Adapter is the perfect solution for slab foundations and low-profile bathroom remodels. This kit combines our innovative horizontal outlet adapter with a decorative linear shower drain, providing a complete professional solution for modern shower installations where a traditional vertical outlet is not possible.

✓ In Stock and Ready to Ship | Free Hair Trap Included with this bundle

The horizontal side discharge outlet adapter is designed for low-profile shower drain installations and features a thick ABS plastic reducer for standard PVC base pipe and P-trap connections. It allows a vertical drain outlet to transition to a horizontal discharge, helping simplify installation, reduce renovation costs, and open up new possibilities for bathroom upgrades—especially in slab, remodel, or limited-access applications.

Paired with the adapter is the SereneDrains stainless steel Broken Lane design linear drain, which combines luxury with functionality. The Broken Lane pattern features intermittent gaps that promote efficient water drainage while adding a distinctive visual element to the shower floor. Crafted from high-quality brushed 304 stainless steel, the drain is durable, corrosion-resistant, and designed to help prevent debris buildup for a cleaner shower environment.

Installation is straightforward thanks to the flange body edge, which accommodates all standard waterproofing methods. The pre-slope channel, with a 2 3/4" (70 mm) width, supports optimal water flow and efficient drainage performance.

Available Finishes: Polished Stainless, Matte Black, Satin Gold, Brushed Nickel, Matte White.

Drain Includes: stainless steel channel body & grate, puller key, waterproofing membrane sheet around the drain flange (not required but included), installation instructions.

Drain Features

• 16 gauge 304 stainless steel, Brushed Nickel finish
• Superior quality laser-cut, electro-polished finish
• Fully welded bodies, leak tested prior to dispatch
• 2-inch diameter central vertical outlet
• Designed to install into any 2" shower drain flange
• Compatible with tiles up to 10 mm depth (14 mm lip)
• Fits standard 1/2", 1", 2", and 4" tile without cutting
• Pre-slope channel
• Channel width: 2 3/4" (70 mm)

Flow Rate:
At entrance of shower: 6.3 GPM (0.4 l/s)
Against the wall: 9.5 GPM (0.6 l/s)

The flange body edge is designed for use with all types of waterproofing, including hot mop, painted or liquid membranes, sheet membrane, vinyl waterproofing, and more.

Drain Dimensions

• 16" (400 mm) – Intake: 10.44 sq. in.
• 24" (600 mm) – Intake: 15.66 sq. in.
• 30" (762 mm) – Intake: 19.94 sq. in.
• 35.43" (900 mm) – Intake: 23.56 sq. in.
• 39.37" (1000 mm) – Intake: 26.47 sq. in.
• 47.25" (1200 mm) – Intake: 27.72 sq. in.
• 59.05" (1500 mm) – Intake: 39.1 sq. in.

Benefits of a Horizontal Shower Drain Converter

Using a horizontal shower drain converter offers several important benefits, especially in remodels and low-profile shower installations:

Connection to Existing Plumbing:
The horizontal outlet allows the new drain to connect to an existing drain pipe and P-trap that are not directly beneath the new drain location. This can minimize the need for extensive demolition and significantly reduce both the mess and overall cost of the renovation project.

Accessibility in Challenging Installations:
In scenarios where there is no access to the space below the floor—such as slab foundations, concrete subfloors, or second-story installations—the horizontal drain outlet makes it possible to complete a project that would otherwise be difficult or impossible. This flexibility is especially valuable when retrofitting older homes or buildings with limited plumbing access.

Enhanced Aesthetic Appeal:
Horizontal shower drains provide a clean, modern look by allowing the drain to be integrated seamlessly into the shower floor, often along one side or against the wall, creating a more streamlined and visually appealing layout.

Improved Water Drainage:
These drains are designed to handle higher volumes of water more efficiently, helping prevent water from pooling in the shower and improving overall drainage performance.

Increased Design Flexibility:
Horizontal drain configurations allow for greater freedom in shower design, including the use of large-format tiles, curbless entries, and barrier-free layouts, making them ideal for modern and accessible bathroom designs.

Easy Maintenance:
Horizontal drains typically feature removable covers or grates, making them easier to access, clean, and maintain compared to traditional center drains.

Better Slope Management:
With a horizontal drain, the shower floor can be constructed with a single, consistent slope toward the drain, simplifying installation compared to center drains that require multiple slope planes.

Enhanced accessibility and reduced clogging:
Horizontal and side-discharge drains are ideal for walk-in showers, helping create safer, barrier-free environments for users with mobility considerations. Their design and wider intake area also make them less prone to clogging and easier to clear if maintenance is required.

Additional Grate Options Available
In addition to the Broken Lane design, this side-discharge outlet adapter is compatible with other stylish grate options. Select from SereneDrains linear and square shower drains, as well as Dawn USA shower drains, all designed to work seamlessly with this versatile adapter so you can choose the style and finish that best fits your shower design.