Your Dolphin E20 robotic pool cleaner works hard all season, but when it is time to store it, the caddy and power supply are exposed to sun, rain, dust, and curious pets. A dedicated caddy cover keeps everything clean, organized, and ready for the next swim. Whether you need a budget-friendly universal fit or a premium OEM cover, this guide walks you through the five best Dolphin E20 caddy covers for 2026. We evaluated each option for material quality, fit, ventilation, and ease of use. If you are still deciding on a caddy itself, check out our roundup of the best Dolphin caddy covers for broader recommendations.

All products reviewed below are compatible with the Dolphin E20 and its universal caddy. We focused on covers that offer real protection without making storage a chore. Read on to find the cover that suits your climate and usage habits.

Buying Guide: What to Look for in a Dolphin E20 Caddy Cover

Choosing the right cover involves more than just picking a color. Here are the key factors we considered when reviewing these products.

Material and Weather Resistance

The cover’s fabric determines how well it shields your Dolphin E20 from UV rays, rain, and wind. Polyester fabrics with a waterproof coating are lightweight and breathable, while vinyl offers heavy-duty protection but may trap heat. Look for vented designs that prevent moisture buildup inside the cover. For more details on materials, see our guide to Maytronics Dolphin caddy covers.

If you store your caddy outdoors in a sunny area, prioritize UV-resistant materials. If it sits in a covered garage, breathability becomes more important to avoid mildew.

Fit and Compatibility

Not all covers labeled “universal” fit the Dolphin E20 caddy perfectly. A snug fit keeps the cover from blowing off and reduces dust intrusion. The best covers have adjustable straps, elastic hems, or drawstrings. Check product dimensions against your caddy’s height and width. The TonGass and PEATOVIE covers are designed as replacements for Maytronics part number 9991794-R1, ensuring a precise fit for Dolphin caddies.

Genuine Dolphin covers are custom‑molded to the Universal Caddy and offer the most secure fit, but aftermarket options can be nearly as good if sized correctly.

Ventilation and Moisture Control

After a cleaning cycle, your Dolphin E20 may still be damp inside. A cover that seals too tightly can trap humidity, leading to corrosion or mold. Vents or mesh panels allow airflow while keeping debris out. The Dolphin Premium and Classic covers include built‑in vents for this purpose. If you live in a humid climate, this feature is essential.

Some aftermarket covers use polyester fabric that naturally breathes better than solid vinyl. Check product descriptions for “ventilated” or “breathable” labels.

Ease of Use and Storage

A good cover should slip on and off quickly. Look for features like handle sleeves that let you move the caddy without removing the cover, or a storage bag for the cover itself. The TonGass cover comes with a black storage bag, and the Dolphin Premium cover has a handle sleeve for easy removal. If you plan to take the cover on trips, portability matters.

For more insights on caddy accessories, visit our Caddies & Covers category page.

Final Thoughts

After comparing the five options, the best choice for most Dolphin E20 owners is the Dolphin Premium Universal Pool Cleaner Caddy Cover for its durable vinyl construction, built‑in vents, and convenient handle sleeve. If you prefer a lighter, more affordable cover that still offers excellent protection, the TonGass Swimming Pool Cleaner Cover Part Number is a solid alternative with a storage bag and universal fit. Both will keep your Dolphin E20 safe from the elements and extend its lifespan.

Frequently Asked Questions

Will any of these covers fit the Dolphin E20 caddy?

Yes, all five covers are compatible with the Dolphin Universal Caddy used by the E20. The TonGass and PEATOVIE covers are direct replacements for the Maytronics 9991794-R1 part, which matches the E20 caddy dimensions. Genuine Dolphin covers are custom‑made for the same caddy.

Can I leave my Dolphin E20 covered outdoors in winter?

Yes, but choose a cover made from weather‑resistant material like the Dolphin Premium vinyl cover. Ensure the cover has ventilation to prevent condensation. If you live in a region with heavy snow, you may want to store the caddy indoors for extra protection. Check our Dolphin Nautilus CC caddy cover guide for similar winter storage tips.

How do I clean my Dolphin E20 caddy cover?

Most covers can be wiped down with a damp cloth and mild soap. Polyester covers like the TonGass and PEATOVIE can be hose‑washed and air‑dried. Vinyl covers should be cleaned with a gentle cleaner and dried thoroughly before storage.

Is the Dolphin Genuine Accessory bundle worth the extra cost?

The bundle includes both the Universal Caddy and the Classic Caddy Cover. If you already own a caddy, buying the cover separately is more economical. But if you need a new caddy as well, the bundle offers a cohesive solution with tangle‑free cable management and a perfect fit.