# Sportsmobile Promaster EB 121s

Promaster EB 121s is a class b floor plan by Sportsmobile.

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 19 ft 8 in |
| Sleeps | 2 |

## Model years

2026. Year-specific specs: `https://rvenvy.com/class-b-motorhomes/sportsmobile/promaster/eb-121s?year={year}`

## Overview

A full bath gives the Sportsmobile Promaster EB 121s a particularly self-contained layout, while the low-floor ProMaster platform keeps entry and everyday movement easy. Its wool-lined walls, cork underlayment, radiant barrier, and insulated ceiling help manage temperature and road noise. Inside, the movable table, 12V refrigerator, 10-gallon fresh-water tank, and 3,000-watt inverter support comfortable off-grid travel, with convertible seating that can become a bed for two.

## Inventory

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

Floor plan diagram: https://images.rvenvy.com/1ca26d38c922ae2f7ff9af5c4bd977d8d3b39bf713f6b2fbd68339efa7670332/1024.webp

Canonical page: https://rvenvy.com/class-b-motorhomes/sportsmobile/promaster/eb-121s