# Sportsmobile Promaster 131S

131S is a class b floor plan by Promaster (Sportsmobile).

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 17 ft 9 in |
| Sleeps | 2 |
| Slide-outs | 0 |

## Model years

2026. Year-specific specs: `https://rvenvy.com/class-b-motorhomes/sportsmobile/promaster/131s?year={year}`

## Overview

This compact 20-foot Class B build maximizes every inch while maintaining a full bathroom—a feature many smaller motorhomes sacrifice. Sportsmobile's efficient design sleeps two comfortably, making it ideal for couples who want the freedom of a self-contained rig without the bulk of larger motorhomes. The thoughtful layout proves you don't need to give up essential amenities to enjoy nimble, go-anywhere capability.

## Inventory

No units currently for sale. Search similar inventory: https://rvenvy.com/inventory

Floor plan diagram: https://images.rvenvy.com/b7502f2ddff3cd529c9138b9989e12dfed79f279a11987a2f630f388121d0f48/1024.webp

Canonical page: https://rvenvy.com/class-b-motorhomes/sportsmobile/promaster/131s