Wetland Filters
Check out our newly redesigned wetland filter components. These new components are designed to simplify installation, maximize surface area for optimal biological filtration, and make cleaning the filter easier than ever!
What is a Wetland Filter?
A wetland filter is a modular, up-flow constructed filtration system mimicking the natural processes of a wetland. Engineered for outstanding water quality, this system is modular, making it scalable for a wide variety of pond sizes.
Wetland Filter Components
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Original price $992.00 - Original price $992.00Original price$992.00$992.00 - $992.00Current price $992.00
Snorkel Vault and Lid V2 W/End Cap for Centipede
Aquascape AustraliaIn stockThe Snorkel® Vault and Lid V2 form the central access point of a wetland filtration system, allowing easy inspection and cleaning of the filter bed...
View full detailsOriginal price $992.00 - Original price $992.00Original price$992.00$992.00 - $992.00Current price $992.00NEW -
Original price $631.00 - Original price $631.00Original price$631.00$631.00 - $631.00Current price $631.00
Centipede Module V2
Aquascape AustraliaOut of stockThe Centipede® Module V2 forms the foundation of the wetland filter’s filtration system, evenly distributing incoming water across the entire filte...
View full detailsOriginal price $631.00 - Original price $631.00Original price$631.00$631.00 - $631.00Current price $631.00NEW SOLD OUT -
Original price $361.00 - Original price $361.00Original price$361.00$361.00 - $361.00Current price $361.00
Snorkel Vault Extension V2
Aquascape AustraliaIn stockThe Snorkel® Vault Extension V2 allows you to increase the installation depth of your wetland filter without losing convenient surface access for m...
View full detailsOriginal price $361.00 - Original price $361.00Original price$361.00$361.00 - $361.00Current price $361.00NEW -
Original price $216.00 - Original price $216.00Original price$216.00$216.00 - $216.00Current price $216.00
FilterBlox Module
Aquascape AustraliaIn stockThe FilterBlox™ Module is the biological heart of the wetland filter, providing 441% more surface area than traditional gravel beds for beneficial ...
View full detailsOriginal price $216.00 - Original price $216.00Original price$216.00$216.00 - $216.00Current price $216.00NEW -
Original price $496.00 - Original price $496.00Original price$496.00$496.00 - $496.00Current price $496.00
Half Centipede Module with End Cap
Aquascape IncLow stockThe Aquascape Half Centipede® Module sits at the lowest point of the wetland filter and helps to efficiently remove sediment, decreasing maintenanc...
View full detailsOriginal price $496.00 - Original price $496.00Original price$496.00$496.00 - $496.00Current price $496.00
How Wetland Filtration Works
Snorkel® Vault
Provides a central access point for cleaning and maintaining the wetland filter
Snorkel Vault Lid
Protects the Snorkel Vault from debris entry, withstanding foot traffic for safe use
Centipede® Module
Distributes water evenly throughout the wetland filter bed for maximum contact with filter media
AquaBlox® Water Storage Modules
Act as a settlement chamber, allowing solids to drop out of suspension before the water rises through the filter media
FilterBlox™ Modules
Use internal Biological Filter Tubes to maximize surface area, greatly increasing capacity for filtration
Centipede End Cap
Provides a convenient connection point for incoming plumbing
Sizing Wetland Filters
Determine the surface area of the water feature that the wetland will filter
Measure the surface area of the pond. Max Length x Max Width = Pond Surface Area

Use the correct target wetland surface areas below to target optimal wetland size
For Systems Using FilterBlox Modules
| Pond Type | % of Pond Size |
|---|---|
| Ecosystem Pond | 5 to 8% |
| Recreation Pond | 12 to 25% |
Use 380–950 liters per hour per AquaBlox® or FilterBlox™.
Use the charts below for typical wetland sizing
If you go beyond the charts, use AquaBlox/FilterBlox dimensions to calculate the optimal filter size. For larger or unique projects, call Aquascape for help.

Ecosystem Pond Wetland Sizing Examples
See common filter size examples and components below.
| Pond Size (sq m) |
*Filter SizeW x L (m) | Filter Layout W x L (see example below) |
AquaBlox Required | FilterBlox Required | Snorkel Vault Required |
Centipede Module Required |
Minimum Excavation W x L x D (m) |
**Minimum Liner Size (m) |
Optimal Flow Rate (lph) |
|---|---|---|---|---|---|---|---|---|---|
| 13.9 | 1.4 x .81 (1.1 sq m) |
2 x 2 | 4 | 4 | 1 | 1 | 1.5 x 1.5 x 1.2 | 5.2 x 5.2 | 3,750 |
| 20.9 | 2.1 x .81 (1.7 sq m) |
3 x 2 | 6 | 6 | 1 | 1 | 2.4 x 1.5 x 1.2 | 6.1 x 5.2 | 3,750-5,750 |
| 27.9 | 2.8 x .81 (2.3 sq m) |
4 x 2 | 8 | 8 | 1 | 1 | 3 x 1.5 x 1.2 | 6.7 x 5.2 | 4,500-7,500 |
| 55.7 | 2.8 x 1.7 (4.8 sq m) |
4 x 4 | 16 | 16 | 1 | 2 | 3 x 2.4 x 1.2 | 6.7 x 6.1 | 7,500-15,000 |
| 83.6 | 2.8 x 2.5 (7 sq m) |
4 x 6 | 24 | 24 | 1 | 3 | 3 x 3 x 1.2 | 6.7 x 6.7 | 11,500-22,750 |
| 111.5 | 2.8 x 3.3 (9.2 sq m) |
4 x 8 | 32 | 32 | 1 | 4 | 3 x 4 x 1.2 | 6.7 x 7.6 | 15,000-30,250 |
| 148.6 | 2.8 x 4.1 (11.5 sq m) |
4 x 10 | 40 | 40 | 1 | 5 | 3 x 4.9 x 1.2 | 6.7 x 8.5 | 19,000-38,000 |
| 223 | 2.8 x 6.5 (18.2 sq m) |
4 x 16 | 64 | 64 | 1 | 8 | 3 x 7.3 x 1.2 | 6.7 x 11 | 30,250-45,500 |
| 353 | 5.5 x 4.9 (27 sq m) |
4 x 12 (x2) | 96 | 96 | 2 | 12 | 6.1 x 5.5 x 1.2 | 9.8 x 9.1 | 38,000-56,750 |
| 464.5 | 5.4 x 6.5 (35 sq m) |
4 x 16 (x2) | 128 | 128 | 2 | 16 | 6.1 x 7.3 x 1.2 | 9.8 x 11 | 47,250-75,750 |
| 929 | 11 x 6.5 (71.5 sq m) |
4 x 16 (x4) | 256 | 256 | 4 | 32 | 11.9 x 7.3 x 1.2 | 15.5 x 11 | 94,750-151,500 |
| 1,393.5 | 16.4 x 6.5 (106.6 sq m) |
4 x 16 (x6) | 384 | 384 | 6 | 48 | 17.4 x 7.3 x 1.2 | 21 x 11 | 151,500-227,000 |
*Filter size reflects components only; surrounding backfill excluded.
** Note: Listed liner dimensions contain only the wetland filter and backfill and do not include any liner needed for outflow into the pond. In most installations, a larger liner will be required to accommodate outflow as well as outcroppings, plantings, and boulders around the filter.
Recreational Pond Wetland Sizing Examples
See common filter size examples and components below.
| Pond Size (sq m) |
*Filter SizeW x L (m) | Filter Layout W x L (see example below) |
AquaBlox Required | FilterBlox Required | Snorkel Vault Required |
Centipede Module Required |
Minimum Excavation W x L x D (m) |
**Minimum Liner Size (m) |
Optimal Flow Rate (lph) |
|---|---|---|---|---|---|---|---|---|---|
| 18.6 | 2.8 x 1.7 (4.8 sq m) |
4 x 4 | 16 | 16 | 1 | 2 | 3 x 2.4 x 1.2 | 6.7 x 6.1 | 7,500-15,000 |
| 27.9 | 2.8 x 2.5 (7 sq m) |
4 x 6 | 24 | 24 | 1 | 3 | 3 x 3 x 1.2 | 6.7 x 6.7 | 11,300-22,750 |
| 37.2 | 2.8 x 3.3 (9.2 sq m) |
4 x 8 | 32 | 32 | 1 | 4 | 3 x 4 x 1.2 | 6.7 x 7.6 | 15,000-30,250 |
| 74.3 | 2.8 x 6.5 (18.2 sq m) |
4 x 16 | 64 | 64 | 1 | 8 | 3 x 7.3 x 1.2 | 6.7 x 11 | 24,500-45,500 |
| 130.1 | 5.5 x 4.8 (26.4 sq m) |
4 x 12 (x2) | 96 | 96 | 2 | 12 | 6.1 x 5.5 x 1.2 | 9.8 x 9.1 | 38,000-56,750 |
| 167.2 | 5.5 x 6.5 (35.8 sq m) |
4 x 16 (x2) | 128 | 128 | 2 | 16 | 6.1 x 7.3 x 1.2 | 9.8 x 11 | 47,250-75,750 |
| 325.2 | 11 x 6.5 (71.5 sq m) |
4 x 16 (x4) | 256 | 256 | 4 | 32 | 11.9 x 7.3 x 1.2 | 15.5 x 11 | 94,500-151,500 |
| 464.5 | 16.4 x 6.5 (106.6 sq m) |
4 x 16 (x6) | 384 | 384 | 6 | 48 | 17.4 x 7.3 x 1.2 | 21 x 11 | 151,500-227,000 |
| 696.8 | 21.9 x 6.5 (142.4 sq m) |
4 x 16 (x8) | 512 | 512 | 8 | 64 | 22.9 x 7.3 x 1.2 | 26.5 x 11 | 189,250-284,000 |
*Filter size reflects components only; surrounding backfill excluded.
** Note: Listed liner dimensions contain only the wetland filter and backfill and do not include any liner needed for outflow into the pond. In most installations, a larger liner will be required to accommodate outflow as well as outcroppings, plantings, and boulders around the filter.
Features of the Wetland Filtration System
Wetland Filter Videos & Applications
Boerner Botanical Garden
A large, stormwater management system captures excess run-off and guides the water through a large, constructed wetland filter.
Children’s Museum of Sonoma County
A sustainable and interactive stream is recirculated through a large wetland filtration system, showcasing the importance of native wetlands to the health of local aquatic ecosystems.
Freshwater Plaza
The Freshwater Plaza in the heart of Milwaukee features the Aquascape Rainwater Harvesting System combined with a unique wetland filter.
Phipps Conservatory
A bog filter and large rainwater collection system were installed at the Center for Sustainable Landscapes at Phipps Conservatory in Pittsburgh.