Lippert Better Bath RV Bathtubs: 24x36 and 24x40 Drain Guide

Lippert Better Bath RV Bathtubs: Find the Right Size and Drain Location

Replacing an RV bathtub takes more than matching its overall length. Lippert Better Bath tubs are made in different footprints, drain positions and colours. Use the exact part-number comparison below to narrow down the right 24 × 36-inch or 24 × 40-inch model for your bathroom.

Three measurements to take before buying

1. Check the available opening

Measure the existing bathtub and surrounding wall opening. The nominal 24 × 36 or 24 × 40-inch size is not a replacement for measuring the mounting lip, support and clearance.

2. Locate the waste outlet

Identify whether the existing tub uses a left, centre or right drain. Note its position against the actual RV plumbing; do not infer left or right from a photograph taken at an unknown angle.

3. Match finish and construction

Compare white and parchment versions and verify the original tub's profile. These Better Bath models use ABS construction, but colour alone doesn't establish fit.

Important: Lippert distinguishes these tubs by footprint and drain location. This comparison does not treat nominal dimensions as exact cutout dimensions or confirm that a drain will line up in every RV. Check the original installation and the manufacturer's mounting instructions before cutting or replacing plumbing.

Better Bath part number comparison

These eight catalogued bathtubs are separate Lippert MPNs. The chart uses the manufacturer's published nominal size, drain location and colour, rather than assuming two similar-looking tubs are interchangeable.

Manufacturer MPN Nominal footprint Drain location Colour
209372 24 × 36 in Left Parchment
209376 24 × 36 in Right Parchment
209385 24 × 40 in Centre Parchment
209388 24 × 40 in Left Parchment
209392 24 × 40 in Right Parchment
209648 24 × 36 in Centre White
209653 24 × 36 in Left White
209658 24 × 36 in Right White

How the configurations differ

24 × 36-inch tubs: Parchment models 209372 and 209376 have left and right drains, respectively. The matching white selections are 209648 (centre), 209653 (left) and 209658 (right).

24 × 40-inch tubs: Parchment versions are 209385 (centre), 209388 (left) and 209392 (right). The extra four inches of nominal length can affect plumbing position and fit, even when the width and colour are the same.

Lippert describes the family as scratch-resistant ABS acrylic. The tub itself is supplied as the bathtub; confirm drain fittings, faucet and any required surround separately rather than assuming they are included.

Compare the matching Lippert bathtubs

Installation and fit notes

Before removing the old tub, document the location of the drain, surrounding panels, supports and mounting points. When comparing replacements, verify the actual interior clearance and any difference between overall height, bathing-well depth and mounting height. Use the specific installation instructions for support and sealing; a matching nominal footprint alone is not enough.

If the existing bathroom has a shower base rather than a bathtub, see our ICON RV shower-pan drain and size reference to identify a different category of replacement.

Frequently asked questions

Does a centre-drain tub replace a left-drain tub?

Not as a direct substitution without confirming and, where permitted, modifying the existing waste plumbing. Match the original drain location first.

Will a 24 × 40-inch tub fit wherever a 24 × 36-inch tub fits?

No. Its nominal length is four inches greater. Measure the full installation space, not just the width.

Are the dimensions in the chart exact hole-cutout sizes?

No. They identify nominal bathtub footprint sizes. Verify the full installation dimensions and drain offset using the specific product's technical information.

Does the tub include a faucet, drain trap or wall surround?

These listed items are tubs. Confirm any additional plumbing and surrounding panels separately for the intended installation.

Quick product links: 209372 · 209376 · 209385 · 209388 · 209392 · 209648 · 209653 · 209658

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