Every configuration below is built from Atlan® Floating Treatment Wetlands modules — engineered by Atlan Stormwater, supplied and supported by Natural Waterscapes. Pick a layout, see exactly how many modules you need, and add them to your cart. Need a custom size? Use our sizing calculator instead.
Designed & manufactured by Atlan StormwaterEvery Atlan module is an 858mm (34") equilateral triangle. Two triangles bolt together to form a square. Squares connect to build any size or shape you need.
858mm triangle. The building block of every island.
Two triangles form a ~34" square. Approximately 8 sq ft. $518 per 2-pack.
Nylon bolts join squares into any layout. Add modules anytime.
NC State field trials measured 77% phosphorus removal at roughly 1% coverage when islands were positioned at the pond outlet. Strategic placement stretches every square foot: start with a pilot island, place it well — we'll show you where — and expand each season.
Size My Pond Exactly| Pond size | 2-3% habitat tier | 5-10% water-quality tier |
|---|---|---|
| 1,000 sq ft ornamental | 20-30 sq ft = 3-4 two-packs | 50-100 sq ft = 7-13 two-packs |
| 1/10 acre (4,356 sq ft) | 87-131 sq ft = 11-17 two-packs | 218-436 sq ft = 28-55 two-packs |
| 1/4 acre (10,890 sq ft) | 218-327 sq ft = 28-41 two-packs | 545-1,089 sq ft = 69-137 two-packs |
| 1/2 acre (21,780 sq ft) | 436-653 sq ft = 55-82 two-packs | 1,089-2,178 sq ft = 137-273 two-packs |
Projects this size qualify for a free expert layout review and volume pricing — talk to us before you buy.
2-8 modules · 8-32 sq ft · Great for small ponds and pilot projects
Every order includes: Atlan modules + nylon connection hardware. Free shipping in the continental US. Ships from our PA & TX warehouses. Secure checkout on shop.naturalwaterscapes.com — our parent company store.
You'll also need: Wetland plants (purchased separately — we help you choose species for your region) · Anchor kit suited to your shoreline (ask us). Questions? (570) 769-9255
Atlan Floating Treatment Wetlands modules — engineered HDPE floats with growing media baskets. View product details
10-16 modules · 40-64 sq ft · Ideal for residential ponds and HOA features
20-48 modules · 80-192 sq ft · Our largest pre-built packages for large ponds and commercial projects
Order 20 or more 2-packs and volume pricing of $498.99 per 2-pack applies — call us to confirm volume pricing on your order. Projects this size qualify for a free expert layout review — request it here.
These are just starting points. Our sizing calculator maps your actual water body and recommends exact coverage based on your goals.
Ordering 10+ two-packs or need spec sheets? Call (570) 769-9255 or email [email protected] for volume pricing and a free layout review.