The best shower drain relocation kit depends on whether you need to move a tub drain, connect to an existing waste line, fit a low-profile side outlet, or adjust a drain grate’s height. For bathtub-to-shower conversions, the dedicated low-profile relocation system is the closest match. The other options serve specific connection, space, or height needs; check pipe sizes and installation requirements before choosing.
| Product | Best For | Key Detail |
|---|---|---|
| Tub to Shower Drain Conversion Kit | Bathtub-to-shower remodels | Designed to relocate a drain over the subfloor |
| Mustee Shower Floor Drain Kit | Existing 1-1/2-inch DWV lines | Includes hose, elbow, clamps, and strainer |
| Low Profile Side Outlet Drain Kit | Low-clearance side-discharge setups | Supports listed 1-1/2- and 2-inch configurations |
| Low Profile Tub Drain Kit | Tight plumbing spaces | Flexible pipe and low-profile P-trap |
| Shower Drain Height Extension Kit | Raising a drain grate | Raises the outlet height by 1/4 to 1/2 inch |
Tub To Shower Drain Conversion Kit
Best for: A bathtub-to-shower remodel where the new shower drain needs to sit in a different location and cutting the subfloor is not an option. This is the most directly relevant choice for relocating a drain because it is described as a low-profile system intended to route the new drain over the existing subfloor.
The listed feature highlights a PVC drain assembly designed to place the new shower drain location over the subfloor. That approach may be useful when the existing drain position does not match the planned shower layout.
Limitation: The supplied product details do not specify pipe dimensions, installation steps, or which shower bases it fits. Confirm the assembly’s dimensions and connection requirements for your project before buying.
Mustee Shower Floor Drain Kit
Best for: A shower floor drain connection to a standard 1-1/2-inch DWV line. It is a practical option when the existing waste-line size matches and the installation needs a drain kit with several connection components.
The set includes a removable strainer, hose, elbow, and clamps. Its listed design supports right-hand or left-hand drain connections, which may help when selecting a layout for the drain connection.
Limitation: This is described as connecting to an existing waste line, not as a complete drain-relocation system. Check whether its included parts and connection arrangement suit the proposed new drain location.
Low Profile Side Outlet Drain Kit
Best for: A low-clearance shower base using a side-discharge drain arrangement. The listed drain height is 1.5 inches, and the product description identifies 1-1/2-inch and 2-inch PVC glue side-outlet configurations.
The kit is made from PVC and includes a perforated strainer. Its low-profile design may be useful when vertical space below the shower floor is limited. Choose this if the side-outlet format and listed pipe sizes match the planned installation.
Limitation: The product information describes a side outlet, not a full tub-to-shower relocation system. Confirm the outlet direction, dimensions, and connection type rather than assuming it will relocate an existing drain by itself.
Low Profile Tub Drain Kit
Best for: Tight spaces beneath a freestanding tub or an RV shower where a flexible drain pipe and low-profile P-trap are needed. The kit uses a 1-1/2-inch end nut that the product description says connects to standard threaded drain pipes.
Its listed components are made from polypropylene, which the product information identifies as corrosion-resistant and suitable for hot water. The flexible pipe is intended to make routing easier than with a rigid drain in space-constrained setups.
Limitation: This is presented primarily as a tub drain kit, not a complete shower drain relocation assembly. Verify the drain and trap arrangement before using it for a shower remodel.
Shower Drain Height Extension Kit
Best for: Adjusting the height of a shower drain grate when the drain opening is already in the correct location. This kit is not a lateral relocation solution; it is for raising the drain outlet height by 1/4 to 1/2 inch when used with rubber washers.
The listed kit includes an extension piece, three rubber gaskets, and two sets of screws: wood screws and machine screws. It is specified for 3-3/8-inch shower drain strainers, with 3-3/8-inch screw-hole spacing.
Limitation: It cannot move a drain to a different floor location. Measure the strainer and screw spacing before purchasing, as the listing calls out these dimensions as fit requirements.
Buying Guide: How To Choose A Shower Drain Relocation Kit
Do you need to move the drain or only change its height?
For a tub-to-shower conversion that needs a new drain location over the subfloor, start with a product specifically described as a relocation system. A height extension kit only raises the grate or outlet; it does not shift the drain across the floor. A standard drain kit may connect plumbing components without providing a relocation path.
Which pipe size and outlet style do you have?
Check the existing waste line and proposed drain connections before selecting a kit. The products listed here reference 1-1/2-inch connections, 2-inch PVC side-outlet setups, or a 3-3/8-inch grate pattern. Those measurements describe different parts of an installation and are not interchangeable. Confirm whether connections are threaded, glued, or otherwise specified by the product.
Is there enough space beneath the shower floor?
Measure the available vertical clearance and account for the intended drain route. Low-profile and flexible components may suit tight spaces, but the product description alone does not establish that a particular kit fits every shower base. Check the dimensions and assembly layout against the project before installation.
What should you verify before buying?
- Compare the existing drain location with the planned shower drain location.
- Identify pipe diameter, outlet direction, and connection type.
- Check the drain opening and grate or strainer dimensions.
- Confirm whether the kit includes the parts needed for the planned assembly.
- Review local plumbing requirements and consult a qualified plumber if the drain route or connections are unclear.
Frequently Asked Questions
What is a shower drain relocation kit?
It is a plumbing assembly intended to route a shower drain to a different location. The needed parts depend on the existing waste line, floor construction, and new drain position.
Can a drain height extension kit relocate a shower drain?
No. The listed extension kit raises drain height by 1/4 to 1/2 inch; it does not move the drain to a different floor location.
What pipe size should I check first?
Measure or confirm the existing waste-line and drain connection sizes. The products here list 1-1/2-inch and 2-inch configurations, so do not assume a kit fits without matching the connection details.
Can a low-profile drain kit be used for every tub-to-shower conversion?
No. Low profile describes the design, not universal compatibility. Check the outlet style, dimensions, pipe connections, and installation layout for the specific remodel.