It is effective to increase the area of the inflow hole! It is also expected to have the effect of preventing sediment inflow.
We would like to introduce our back drainage materials for retaining walls, "Pat Filter/TM Filter." The "Pat Filter" was developed with the aim of achieving reliable drainage effects with simple installation. The maintenance of retaining walls and irrigation channels depends on the quality of the back drainage. The "TM Filter" is suitable for cases where the back of the retaining wall is fully backfilled with stones or gravel, as well as for block and stone masonry retaining walls. 【Pat Filter Features】 ■ Increases drainage effectiveness from drainage holes ■ Prevents damage from uplift or frost heave in irrigation channels ■ Prevents the outflow of backfill soil and is less prone to clogging ■ Easy to install *For more details, please download the PDF or feel free to contact us.
Inquire About This Product
basic information
【TM Filter Features】 ■ Three-dimensional structure makes it less prone to clogging ■ Easy installation by simply inserting it into the drainage hole (use a backing plate when inserting) ■ Effective when adding weep holes later *For more details, please download the PDF or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
【Purpose】 ■Maintenance of the function of weep holes in waterways and retention basins *For more details, please download the PDF or feel free to contact us.
catalog（1）
Download All Catalogs
Company information
Tōtetsu Co., Ltd., a long-established manufacturing company since the 8th year of the Taisho era 【Partial incorporation on September 1, 2024】➡ Tōtetsu Plus has started Tōtetsu Plus handles the following products: 1) Equipment for waterways and retaining walls that prevents floating destruction of waterway structures has a history of about 50 years. (Float valve type weep holes, side drainers, under drainers, pad filters, TM filters, etc.) 2) Comprehensive manufacturer of rainwater storage and utilization Aiming for the full-scale utilization of rainwater (Proposing higher quality rainwater utilization with initial rainwater cut-off products. Handling above-ground tanks and storage tanks.) 3) Backflow prevention valves for drainage Discharges water from hand holes, joint utility trenches, and information boxes, preventing groundwater intrusion. 4) The original sandbag station Leave it to us for sandbag stations. Our sandbag station is foldable, making it easy to move and transport. We meet various needs with different sizes and colors. 5) Basket mats / futon baskets New futon baskets as exterior items <Gabion Exterior Retona>
![[Construction Case] Agricultural Water Conservancy Project - Installation of Water Conveyance Pipes](https://image.www.ipros.com/public/product/image/0b7/2000693399/IPROS92046973382643952051.png?w=280&h=280)
