Open Box 4 Rider "Great Big Mable" Style Backrest

• You benefit from the fact that modern towable technology allows for specialized backrest chambers, which were originally popularized to provide a "couch-style" experience that changed lake sports forever.
• These boat tube replacements undergo a strict 24-hour inflation test to ensure that the unsealed packaging hasn't compromised the heavy-duty 30-gauge PVC material.
• You will find that modern towables can reach speeds over 20 mph, making the structural integrity of this specific upright support bladder vital for rider safety.

This is a previously unwrapped item that has never been used on the water and was either a customer return for a wrong fit or a demo/display item. Comes with the same original manufacturer's warranty! Don't throw away that perfectly good towable cover, re-use it! TRL Watersports original replacement innertubes are quite simply the strongest in the business. This is a bladder replacement for models like the Sportsstuff® /Airhead® “Great Big Mable” and Gladiator “Great Big Brawler” 4-person towable tube BACKREST ONLY. If you need both the BACKREST and the SEAT BASE Replacement, please see our 4 Rider "Great Big Mable" Style 2 Piece Replacement Set. Please note the position of the inflation valve in the picture and ensure it is compatible with your backrest. You may need to fill via a flexible hose if your existing valve cover does not align properly! This contains the innertube only, and NOT the cover. Breathe new life into your towable! Don't spoil that summer vacation by having your favorite towable "fall flat"! Have an affordable spare with you on your well-deserved time off! Heavy Duty PVC Construction (12-15% thicker than any original or replacement tube on the market). Double-welded seams for added durability. Super speed valve for easy inflation and deflation. Measurements (Inflated) Approximately Measurements (Inflated) Approximately 106"W and 30" Armrests If you have any questions on whether this innertube will fit your towable, we will be happy to assist and ensure it is compatible with your cover! Check out our entire line of products available. We have 2, 3, and 4 Rider sofa style replacement innertubes available in complete sets or individual sections.

• Choosing these towable tube replacements allows you to restore the massive vertical support needed to keep four riders comfortably seated during aggressive whips and turns.
• You can trust these boat innertube replacements to maintain consistent air pressure, which is essential since tubing can burn up to 300 calories per hour through core engagement.
• Owning these high-quality boat innertubes ensures your oversized four-person towable remains a functional part of your fleet without the high cost of a brand-new retail kit.