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Carriff Engineered Fabrics Corporation
Drainage Filter Sock™

Recreation Drainage Filter

Drainage Filter Sock™

Recreation Drainage Solutions

Carriff’s Drainage Filter Sock™ is a key innovation in managing water for outdoor sports and recreational areas. This product, for nearly 50 years on the market, uses advanced circular knitting technology and high-quality materials to ensure optimal drainage performance. It’s designed to maintain dry and even surfaces in sports fields, playgrounds, and golf courses under various weather conditions. The Drainage Filter Sock™ not only extends the usable time of recreational spaces post-rain or snow but also plays a crucial role in preserving ground health by preventing sediment and roots from damaging your drainage system while also reducing waterlogging and soil compaction. Its ease of installation and maintenance efficiency make it an ideal solution for a wide range of applications, from backyard drainage to professional sports facilities.

Recreation Drainage
Advanced Technology

Utilizes circular knitting technology for superior performance.

Optimal Drainage

Ensures dry, even surfaces in various weather conditions.

Extended Use

Quickly dries grounds post-rain or snow, increasing playtime

Ground Health

Prevents waterlogging and soil compaction, enhancing grass health.

Versatile Applications

Ideal for sports fields, playgrounds, golf courses, and backyard drainage.

Maintenance Efficiency

Reduces groundskeeping efforts and costs.

Proven Track Record

Nearly 50 years on the market with a preference among professionals.

Easy Installation

Designed for simplicity and effectiveness in installation.

Environmentally Friendly

Supports sustainable and healthy outdoor environments.

Sock™ Options

Maximize Your Recreation Project's Success With Carrriff's Sock™

Why Choose Sock™ For Your Recreation Project


Our 100% polyester Sock ™ filters are available to fit pipe diameters ranging from 2″ to 48″ (50 mm to 1200 mm) and are designed to work with all perforated drainage pipes, including corrugated HDPE, steel, aluminum, and PVC pipes.

Our most popular Sock™ is the 4″ filter, which comes in Regular and XL sizes. The 4″ XL filter, while designed for 4″ diameter pipes, is slightly larger in size than the regular 4” filter, making it easier to apply and as a result is less susceptible to damage during normal handling and installation.

Buy Drainage Filter In Bulk

Most Sock™ filters are available as either white or black fabric. Black fabrics provide enhanced resistance to degradation from UV radiation, in the event of prolonged outdoor storage prior to installation.

Opening Size:
The opening size of our Sock™ filters was designed to prevent sand and soil from entering and clogging agricultural drainage pipes. With an Apparent Opening Size (AOS) of 0.600 mm, or a Filtration Opening Size (FOS) of 450 µm, our Sock™ filters provide the appropriate level of filtration for the vast majority of soils encountered in agriculture. However, in geographies where very fine, sandy, or silty soils are present, filter envelopes with a smaller opening size may be needed. Our Super Sock™ filters are available with an AOS of 0.425 mm, 0.300 mm, 0.250 mm, and 0.150 mm (FOS of 330 µm, 250 µm, 150 µm, and 120 µm) and have been used in agricultural drainage systems as an extra level of protection against very fine soils.   Download our performance data guides for Sock™ and Super Sock™ filters here.
Drainage Fabric Filter
Sock™ Options Section
Technical Specifications

All of our Drainage Filter Socks™ are designed to meet or exceed the performance criteria defined by ASTM Standard D6707-06 (2019): Standard Specification for Circular-Knit Geotextile Fabric for Use in Subsurface Drainage Applications. Sock™ filters are defined as Type A fabrics and Super Sock™ filters are defined as Type H fabrics under ASTM D6707-06 (2019). The table below shows how our filters compare to the ASTM criteria for Type A and Type H fabrics.


Type A value

Sock™ value

Type H value

Super Sock™ value


Min:     2.4sec-1


Min:     2.75sec-1

2.75sec-1 – 5.00sec-1

Apparent Opening Size

Max:   0.600 mm

0.600 mm

Max:   0.425 mm

0.250 mm – 0.425 mm

Puncture Resistance

Min:     800 N

1000 N

Min:     800 N

925 N – 1400 N

*In addition to the criteria above, we manufacture and test our Sock™ and Super Sock™ filters to meet several other standards. Please review our Product Performance Data Sheets for Sock™ and Super Sock™ filters for more information.

Drainage Filter Sock™

Where to Buy Our Products

Buy in bulk
We sell our Drainage Filter Socks in bulk to pipe manufacturers throughout North America and Europe. If you are a pipe manufacturer, please contact us to request a quote. If you are a contractor, farmer, or engineer interested in using our geotextiles for your next job, ask your pipe supplier to provide pipe with Carriff Sock™ filters installed.
Buy Drainage Filter In Bulk
Buy retail

If you are a DIY-enthusiast looking to tackle your own drainage project, you can find our patented Drain-Sleeve® products in major home improvement stores throughout the United States and Canada, including Home Depot (US/Canada) and Lowe’s. You can also visit our DIY page to learn more.

Drain Sleeve Roll
Drain Sleeve Preload White

Explore Our Other Products

Explore our range of products to discover the perfect solution for your most demanding drainage filtration requirements.

Contact Us

Get in touch with our experts and let us come up with the perfect solution for your drainage projects to perform the way you want them to.