Drainage Rock
Larger media used to support drainage and protect the underdrain zone.
Pea Metal | Garnet
Filter Media and Specialty Products
Filtration media for water treatment projects
Explore Absorb filter sand, support gravel, garnet, anthracite and specialty media for water treatment, wastewater and industrial filtration applications.
Support Media Category
Pea Metal, Garnet & Support Layers
These products sit beneath, between or alongside the active filtration layers — supporting the filter bed, protecting the underdrain and helping water move evenly through the system.
Why this page is different
These are the foundation materials, not the main filter sand range.
Pea metal, drainage rock, coarse support sand and garnet are used to build a stable graded profile below the active filtration media.
The right support profile helps prevent media migration, protect nozzles or laterals, assist drainage and support more effective backwashing.
If you are rebuilding a filter bed, this is the category for base layers, transition layers and dense support media.
Pea Metal
Intermediate support media between coarse base layers and finer media.
Coarse Filter Sand
Coarser sand grades used as support or transition media in selected beds.
Garnet
Dense mineral media for multi-media and graded filtration systems.
Layered Orders
Multiple grades can be supplied for staged installation and replacement.
Available products
Browse support media products below.
Select from pea metal, drainage rock, coarse support sand and garnet products. These materials are commonly used in graded filter beds, underdrain protection, refurbishment projects and multi-layer filtration systems.
For complete filter bed rebuilds or multiple-layer orders, send us the media profile and we can help calculate quantities and supply requirements.
Tip: If you are replacing a full filter bed, tell us the order the layers will be installed. Where practical, Absorb can help pack and label media so the first material needed is easiest to access on site.