21' Round Crystal Overlap Above Ground Pool Liner – 48"–52" Wall Height (220021)

Key Features

• Fits 21' Round Pools: Designed to fit above ground pools with a 21-foot round diameter.
• Adjustable Wall Height: Overlap design fits pool walls 48" to 52" tall—no bead track required.
• Crystal Tile Pattern: Beautiful crystal blue print enhances pool water color and backyard aesthetics.
• Durable Vinyl Construction: Made from high-quality virgin vinyl for long-lasting resistance to UV rays, pool chemicals, and punctures.
• Easy DIY Installation: Overlap liner installs under top rail using coping strips—perfect for liner replacements or upgrades.

Product Overview

The 21' Round Crystal Overlap Pool Liner (Model 220021) is a reliable and affordable solution for refreshing your above ground pool. Featuring a vivid blue crystal pattern and durable 100% virgin vinyl construction, this liner offers excellent durability and a vibrant look. Its overlap style makes it simple to install and adjust to various pool wall heights between 48" and 52". Whether you're replacing a worn liner or giving your pool a fresh new look, this liner delivers both beauty and value.

Specifications

• Pool Size: 21' round
• Wall Height: Fits 48"–52" walls
• Style: Overlap
• Material: 100% virgin vinyl
• Pattern: Crystal tile/blue water look
• Seams: Double-welded for extra strength
• UV Resistant: Yes
• Chemical Resistant: Yes
• Warranty: Manufacturer’s limited warranty included

What’s Included

• 21' Round Overlap Pool Liner (Crystal Pattern)
• Installation Instructions
• Note: Coping strips sold separately if needed

Why Buy From Best Buy Pool Supply?

• High-quality liners at competitive prices
• Fast shipping 
• Knowledgeable staff to assist with sizing and installation

Shipping & Returns

• Shipping: Ships in 1–2 business days
• Returns: 30-day return policy on unopened liners

Need Help Choosing the Right Liner?

Call our liner experts at (800) 877-1268 or click here to message us. We'll confirm fit and guide you through installation tips.