LINERS
12x21 Ft Oval 20 Gauge Blue Heavy Duty Replacement Swimming Pool Liner
Overlap
Thickness: 20 Gauge
Solid Blue
Pool Type: Above-Ground
Refresh your backyard oasis with this heavy-duty 20 gauge solid blue replacement liner, specifically engineered for 12x21 ft oval above-ground pools. It is the ideal solution for homeowners seeking a professional-grade finish and reliable, long-term leak protection.
FIT CHECK BEFORE YOU BUY
- Confirm pool shape + exact dimensions (12' x 21' Oval).
- Match liner type (Overlap) to your pool wall—this liner drapes over the wall and is secured with coping strips.
- Verify wall height—standard overlap liners fit 48" to 54" pool walls.
Quick Fit Snapshot
- Pool Type: Above-Ground
- Shape: Oval
- Size: 12' x 21'
- Wall Height: Fits 48", 52", and 54"
- Liner Type: Overlap
- Thickness: 20 Gauge
Why You'll Love It
- Premium Pattern Depth — The classic solid blue color provides a vibrant, clean, and crystal-clear water appearance.
- Built for Season After Season — UV-resistant heavy-duty vinyl is designed to withstand harsh chemicals and intense sunlight.
- Smooth Feel + Clean Finish — Features lap-welded seams for a comfortable walking surface and unmatched structural integrity.
- Confidence Fit Guidance — Precision-cut dimensions ensure a snug fit that reduces wrinkling and simplifies the install.
What's Included
- Heavy-Duty 20 Gauge Overlap Vinyl Liner
- High-temperature lap-welded seams for leak prevention
- Manufacturer warranty applies
Installation Notes
- Inspect the pool floor and walls; remove sharp debris and ensure a smooth sand base before installing.
- Use a proper liner pad and wall cove to protect the vinyl from punctures and stress at the seams.
- Fill slowly and smooth wrinkles by hand or with a vacuum as water rises for the cleanest finish.
- If you're unsure on fit or track type, contact your local store before opening the factory seal.
PRO TIP
Measure twice. Liners are best confirmed by exact pool size and track type.
Overlap liners are the most versatile for wall height, but always ensure your top rails and coping strips are in good condition for the best results.
Color/pattern may vary slightly by production run and lighting. Always verify pool measurements and liner type before opening packaging. Opened liners may not be eligible for return.
