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street drainage channel / for parking lots / patio / plastic
D-RAIN JOINT™ Bio-Microbics



  • Applications:

    street, for parking lots, patio

  • Material:

    plastic, aluminum

  • Configuration:

    with central slot

  • Other characteristics:



As a Sustainable Drainage System (SuDS), the d-Rain Joint™ is a simple, low-cost, and robust onsite stormwater management alternative compared to other permeable, pervious surface options.

The d-Rain Joint™ system is composed of prefabricated devices directs the collection and conveyance of surface rainwater to an underground drainage bed for impervious and “hardscape” surfaces. This permeable pavement system (PPS) can be used wherever a permeable, pervious requirements for a driveway, parking lot, garage, large patio, Community Street, pool areas, theme parks, or public walkway is needed. The use of traditional pavement with the d-Rain Joint™ provides both permeability AND filtration at a lower installed cost! These d-Rain Joint™ devices allow the use of traditional concrete or other paver-type materials to construct a high-performing permeable, pervious surface system to put filtered rainwater in the underneath gravel detention area of the pavement; thus, increasing the usable surface, eliminating costly stormwater infrastructure or potential pollution hazards to urban ecosystems.

Rainwater Filtration Device Products include:

d-Rain Joint™ 6061-T6 (aluminum), <1” wide and available in 8’ lengths
NEW! d-Rain Joint™ PPIC (gray plastic), <1” wide and available in 8’ lengths (introduced at GreenBuild 2016)
Easy to install like a standard expansion joint and virtually undetectable between concrete slabs, the ADA-compliant d-Rain Joint™ 6061-T6 (aluminum) and the new d-Rain Joint™ PPIC (flexible plastic) channel-inserted filter captures sediment to ensure it’s continued effectiveness of the system at a maximum rate of 5 GPM/linear foot.

Other Bio-Microbics products