Pool Liner | GLI | 21 Ft Round Boulder RiverRock Overlap Pool Liner | Wall 48 to 52 in | Overlap Edge

GLI 21' Round Boulder/RiverRock Overlap AG Liner 48–52 inch Wall is a purpose-built vinyl liner designed for 21-foot round above-ground pools. The overlap edge provides a secure, field-friendly install while the Boulder/RiverRock texture adds a natural, premium aesthetic to your pool deck. Engineered for real-world durability, this vinyl pool liner stands up to sun, chlorine, and temperature changes without cracking or fading. The Boulder/RiverRock surface helps conceal minor scuffs and waterline marks, keeping your pool looking clean between cleanings. Designed specifically for 21' round pools, it fits standard 48–52 inch wall configurations for a snug, leak-minimizing seal.

• Overlap edge design for simple installation on 48–52 inch walls
• 21' round size matches most above-ground pool frames
• Boulder/RiverRock texture delivers a natural, upscale look
• Durable vinyl construction resists punctures, fading, and chemical wear
• Low-maintenance surface stays cleaner with less scrubbing

Upgrade your backyard with a liner that blends rugged style with practical performance. Add to cart to renew your pool’s appearance and protection today.