A center-drain tub and shower setup needs drain components that match the tub outlet, available space, and drain-hole dimensions. The products below are drain kits, a tub drain-and-overflow assembly, and a stopper—not complete tub-and-shower combos. The flexible low-profile kits are best for tight spaces or freestanding tubs, while the Citymoor kit adds a tub drain and overflow. Measure your existing drain and check the product’s listed fit details before choosing.
| Product | Best For | Key Detail |
|---|---|---|
| Flexible 1 1/2-Inch Low-Profile Drain Kit | Space-constrained installations | Flexible pipe and low-profile P-trap |
| Citymoor Matte Black Drain and Overflow | Replacing a tub drain assembly | Lift-and-turn stopper |
| Cinsda Low-Profile P-Trap Kit | Freestanding or RV tubs | Flexible polypropylene pipe |
| coamanug Pop-Up Stopper with Strainer | Hair capture and drain-hole fit | For listed 1 1/2- to 1 3/4-inch openings |
| Flexible Freestanding Tub Drain Kit | Low-clearance tub installations | 1 1/2-inch low-profile design |
1 1/2-Inch Low-Profile Tub Drain Kit
This kit combines a flexible drain pipe with a low-profile P-trap for installations where a rigid drain assembly may take up too much room. Its 1 1/2-inch end nut is described as connecting to standard threaded drain pipes. The listed polypropylene construction is intended to resist corrosion and tolerate hot water.
Best for: A freestanding tub, RV shower, or other setup with limited clearance and a 1 1/2-inch connection requirement. It was selected for its space-saving configuration and flexible pipe. Limitation: Check the actual connection type and available clearance; a low-profile trap does not guarantee a fit in every center-drain layout.
Citymoor Matte Black Tub Drain and Overflow
This product is a tub drain-and-overflow kit with a matte black finish and lift-and-turn stopper. The listing says it fits most bathtubs and tub elbows sized for 1 3/8-inch and 1 1/2-inch connections. Its metal construction and corrosion-resistant finish are intended for wet environments.
Best for: Buyers replacing a bathtub drain assembly who want a lift-and-turn stopper and an included overflow component. It stands apart from the flexible trap kits because it is described as a drain and overflow set. Limitation: Verify the tub elbow and drain dimensions before purchase; “most bathtubs” does not establish a fit for every tub.
Cinsda Flexible Low-Profile P-Trap Kit
The Cinsda kit uses a 1 1/2-inch low-profile P-trap and flexible drain pipe. Its listed uses include bathtub installations and RV tubs. The flexible pipe is intended to help address space limitations associated with fixed drains or replace old or damaged plumbing components. The pipe is made from engineered polypropylene, which the listing describes as corrosion-resistant and tolerant of high temperatures.
Best for: A tub installation where a flexible connection and low-profile trap may help work around restricted space. It was selected for its stated bathtub and RV use. Limitation: The listing does not provide every installation measurement, so confirm pipe length, connection style, and clearance for your project.
coamanug Pop-Up Stopper with Hair Strainer
This is a stopper and hair catcher, not a full drain pipe or P-trap kit. It can close the drain to hold water or open for draining, while its built-in strainer captures hair and debris. The stated fit is for most bathtub drain holes measuring 1 1/2 to 1 3/4 inches, with a minimum drain-hole depth of 1 inch.
Best for: Replacing or supplementing a stopper when hair capture and a pop-up action are priorities. It was selected as a small component that may complement a tub drain setup. Limitation: Measure both the hole diameter and depth; it will not replace the drain plumbing or overflow assembly.
Flexible Freestanding Tub Drain Kit
This kit is described for freestanding tubs, including slipper and soaking tubs, and includes a PVC drain hose. Its low-profile flat P-trap is listed as 1 1/2 inches in diameter. The product information also identifies flexible PVC and rubber components and notes use in compact spaces, including RVs.
Best for: A freestanding tub project where a flexible hose and shallow trap are useful features to compare. It was selected because its listing specifically mentions a flexible drain for a center-drain tub. Limitation: Confirm that the included hose and connection points suit your tub and plumbing layout; the listing does not establish universal compatibility.
Buying Guide: How to Choose a Center-Drain Tub Component
Do you need a full drain assembly or just a stopper?
A drain-and-overflow kit, a P-trap kit, and a stopper perform different jobs. The Citymoor product is listed as a drain and overflow assembly. The flexible kits focus on the drain pipe and trap. The coamanug product is a stopper with a hair strainer, so it does not replace the plumbing beneath the tub. Identify the part you need before comparing options.
What dimensions should you check?
Measure the tub drain opening, connection diameter, and available clearance beneath the tub. The products list different fit details, including 1 1/2-inch plumbing connections and a stopper fit range of 1 1/2 to 1 3/4 inches. Check the drain-hole depth for the coamanug stopper, which specifies a minimum of 1 inch. Confirm connection type as well as diameter.
When is a flexible, low-profile trap useful?
A flexible pipe and low-profile trap may be worth comparing when rigid plumbing is difficult to position or space below the tub is limited. The first, Cinsda, and freestanding tub kits all describe space-saving or flexible designs. Compare the materials and listed dimensions, and do not assume that flexibility alone resolves a mismatch in plumbing connections.
Does a center drain mean the same thing as a tub-and-shower combo?
No. “Center drain” describes drain placement, while a tub-and-shower combo refers to a bathing fixture arrangement. The listed products are drain-related components; none is identified as a complete tub, shower, or enclosure package. Confirm that the product addresses the part of your installation you are buying.
Frequently Asked Questions
Which listed product includes a tub overflow?
The Citymoor Matte Black Tub Drain and Overflow Kit is the product specifically described as including a tub drain and overflow.
Which product is specifically described for a center-drain tub?
The flexible freestanding tub drain kit with PVC hose is described as including a flexible drain for a center-drain tub.
Can a stopper replace a P-trap?
No. A stopper closes or opens the drain at the tub opening. A P-trap is part of the plumbing beneath the tub, so the components serve different purposes.
What should I measure before ordering?
Measure the drain-hole diameter and depth, plumbing connection diameter, and clearance beneath the tub. Compare those measurements with the selected product’s listed fit details.