Robelle 18 x 33 ft Oval Pool Winter Cover — Professional Supreme Extra Heavy‑Duty Solid with Winch

Robelle's 18 x 33 ft Professional Supreme Oval Cover is an extra heavy‑duty solid winter cover built to protect above‑ground oval pools through the off‑season.

This winter cover is a robust, solid polyethylene cover designed specifically for traditional above‑ground pools with a conventional top rail. It uses a dense 12 x 12 scrim weave and heavyweight material so the sheet lies over the pool, preventing water penetration and minimizing debris accumulation. The cover ships with a winch and cable and includes a generous four‑foot overlap to simplify installation and ensure a secure fit for an 18 x 33 ft pool.

How is this cover constructed to resist winter wear?

The Robelle Supreme uses a professional‑grade polyethylene fabric woven in a 12 x 12 scrim pattern, giving the sheet high tensile strength and tear resistance. The material is heavyweight (approximately 125 g/m², ~3.7 oz/yd²), which helps it stand up to snow, ice, and seasonal stresses better than thinner covers.

• 12 x 12 scrim weave for reinforced durability
• Heavyweight polyethylene fabric to resist punctures and abrasion
• Black underside and green topside for UV and dirt masking
• Engineered to float without excessive tension on the pool

What hardware and installation features are included?

The cover comes with a winch and cable so you can thread and tighten the cable through the perimeter grommets. Robelle recommends using the winch system as the primary securing method; additional accessories like cover clips or cover wrap can be purchased separately for extra hold‑down around decks or exposed rails.

• Included winch and cable for fastening through grommets
• Four‑foot overlap (22 x 37 ft total material) for easier placement
• Designed for winch tensioning—avoid alternative installation methods
• Suggested water weights or cover clips for decked pools

Will this cover keep water out and handle heavy snow?

This is a solid winter cover, so its material does not allow water to pass through—keeping rain and melted debris from entering the pool through the cover fabric. The extra material weight and dense scrim improve resistance to snow and ice loads, and the design supports flotation over the pool to reduce stress on the perimeter.

• Solid design prevents water passage through the fabric
• Extra heavy weight plus 12 x 12 scrim for snow and ice performance
• Floatation strategy reduces grommet and rail stress
• Consider a larger size if you have oversized top rails

How long will this cover last and what warranty applies?

Robelle builds this cover to a professional standard, using materials heavier than typical retail covers to extend lifespan through multiple seasons. The product is supported by a long manufacturer warranty, reflecting the brand’s decades of experience in pool closing solutions.

• Constructed heavier than standard hobby covers for extended service life
• Backed by Robelle’s long‑term warranty for winter covers
• Quality manufacturing with over 50 years of company pool experience
• Recommended seasonal use only—this is a winter/off‑season cover

Who is this for: Pool owners with a traditional above‑ground oval pool (nominally 18 x 33 ft) who want a professional, solid winter cover that resists snow, ice and debris. It’s best for those who will secure the cover with the included winch and cable, may use additional deck water weights or clips as needed, and prefer a heavier, longer‑lasting sheet designed specifically for off‑season protection rather than in‑season debris control.