HydroStor® Chamber
High-performance stormwater chambers
Product Type: Chamber
Prinsco high-performance HydroStor® stormwater chambers are designed for site-specific applications such as parking lots, roadways, and commercial developments. With four sizes available, creating the ideal stormwater management system for your unique needs is easy when you choose HydroStor.
HydroStor chambers provide an environmentally sustainable underground water management system that optimizes groundwater recharge and saves valuable land resources. Our storm chamber models are designed to fit almost any type of performance specifications, project footprint, and construction budget.
Prinsco’s storm chamber systems can be easily modeled with the HydroCAD Stormwater Modeling System and the Civil 3D Auto CAD Module. Both tools simplify the process of designing a system meeting specific storage and footprint requirements.
Contact your Prinsco sales rep to learn more about HydroStor® Chamber.
Related
Performance
- High-performance polypropylene material
- Meets or exceeds ASTM F2418 product standard and ASTM F2787 design standard
- Meets AASHTO H20 live load and HL93 design load requirements
- Advanced injection molding technology for maximum structural performance
System Design
- Maximum land utilization and minimal environmental impact
- Smaller footprint with lower installed cost than similar chambers
- Features integral connectors for simplified assembly
- Design tool available at Prinsco.com/HydroStor-Resources
- Available as part of a complete solution with end caps, pipe manifolds, and pretreatment options
Handling
- Integrated handles for safe on-site handling
- Sturdy and lightweight for safe transport and placement by two people
- Specially designed pallet for trouble free handling
- Maximum stacking density to reduce on-site staging footprint
Available Sizes
HS290 |
HS180 |
HS75 |
HS31 |
|
|---|---|---|---|---|
| Installed Storage Capacity* | 164.5 ft3/chamber | 176 ft3/chamber | 75 ft3/chamber | 29.6 ft3/chamber |
| Height | 59.5″ | 45.5″ | 29.7″ | 16″ |
| Width | 100.5″ | 77.8″ | 51″ | 34″ |
| Unit Length | 51.8″ | 88.7″ | 87.1″ | 87.3″ |
| Installed Length | 48.3″ | 85.3″ | 84.9″ | 85.5″ |
| Weight | 122 lbs | 122 lbs | 69 lbs | 34 lbs |
| Chambers/Pallet | 10 | 19 | 33 | 90 |
| Material | Polypropylene | Polypropylene | Polypropylene | Polypropylene |
| Mfg. Process | Injection Molding | Injection Molding | Injection Molding | Injection Molding |
| Special Features | Integrated Handles | Integrated Handles | Integrated Handles | Integrated Connectors |
| ASTM Standards | Meets or Exceeds | Meets or Exceeds | Meets or Exceeds | Meets or Exceeds |
* Assuming 40% void volume of backfill with 9″ bedding & 12″ cover for HS290 & HS180 and 6″ bedding & 6″ cover for HS75 & HS31
Installation Specifications
HS290 |
HS180 |
HS75 |
HS31 |
|
|---|---|---|---|---|
| Backfill Above Chamber | 12″ min. | 12″ min. | 6″ min. | 6″ min. |
| Bedding | 9″ min. | 9″ min. | 6″ min. | 6″ min. |
| Chamber Spacing | 8.5” | 5″ | 6″ | 3″ |
| Backfill at Edge of System | 12″ | 12″ | 12″ | 12″ |
| Minimum Cover | 24” | 18″ | 18″ | 16″ |
| Maximum burial Depth | 8′ | 8′ | 8′ | 8′ |
- Meets or exceeds ASTM F2418 product standard
- Meets or exceeds ASTM F2787 design standard
- Meets AASHTO H20 live load requirement
- Meets AASHTO HL93 design load requirement
Product Brochures
HydroStor® Competitor Comparison – Spanish
(PDF)
Modified: 4/15/2025
HydroStor® Chamber Decision Tree
(PDF)
Modified: 4/10/2025
HydroStor® Chamber Decision Tree – Spanish
(PDF)
Modified: 4/15/2025
HydroStor® Competitor Comparison
(PDF)
Modified: 4/23/2025
HydroStor® Footprint Comparison
(PDF)
Modified: 11/20/2023
HydroStor® Product Sheet
(PDF)
Modified: 4/15/2025
HydroStor® Product Sheet – Metric
(PDF)
Modified: 4/15/2025
HydroStor® Product Sheet – Spanish
(PDF)
Modified: 4/15/2025
Stormwater Line Card
(PDF)
Modified: 4/15/2025
Stormwater Line Card – Spanish
(PDF)
Modified: 4/15/2025
Specifications
HydroStor® HS180 Product Specification
(PDF)
Modified: 11/20/2023
HydroStor® HS180 Specification Drawing
(DWG)
Modified: 11/20/2023
HydroStor® HS180 Specification Drawing
(PDF)
Modified: 11/20/2023
HydroStor® HS290 – Product Specification – TN-4-501
(PDF)
Modified: 11/20/2023
HydroStor® HS290 – Specification – D-7-501
(PDF)
Modified: 11/20/2023
HydroStor® HS290 – Specification – D-7-501
(DWG)
Modified: 11/20/2023
HydroStor® HS31 Product Specification TN-4-401
(PDF)
Modified: 4/10/2025
HydroStor® HS31 Specification D-7-401
(PDF)
Modified: 4/10/2025
HydroStor® HS31 Specification D-7-401
(DWG)
Modified: 4/15/2025
HydroStor® HS75 Product Specification
(PDF)
Modified: 11/20/2023
HydroStor® HS75 Product Specification TN-4-301
(PDF)
Modified: 9/20/2024
HydroStor® HydroStor HS75 – Specification – D-7-301
(DWG)
Modified: 9/19/2024
HydroStor® HydroStor HS75 – Specification – D-7-301
(PDF)
Modified: 9/19/2024
Calculators
HydroStor® Chamber System Design Aid Calculator
(XLS)
Modified: 4/10/2025
HydroStor® Chamber System Design Aid Calculator – Metric
(XLS)
Modified: 4/10/2025
HydroStor® Stage Storage Calculator
(XLS)
Modified: 4/10/2025
Installation Guides
HydroStor® Pocket Construction Guide
(PDF)
Modified: 4/18/2025
HydroStor® Pocket Construction Guide – Spanish
(PDF)
Modified: 4/18/2025
HydroStor® End Cap Field Cut Guide
(PDF)
Modified: 11/20/2023
HydroStor® HS180 & HS290 Installation Guide – TN-4-114
(PDF)
Modified: 8/13/2024
HydroStor® HS75 & HS31 Installation Guide – TN-4-111
(PDF)
Modified: 4/10/2025
HydroStor® Stormwater Chamber Installation Guide
(Video)
Modified: 5/16/2024
CAD Drawings
HydroStor – HS180 Scour Protection – D-7-207
(DWG)
Modified: 2/9/2024
HydroStor – HS180 Scour Protection – D-7-207
(PDF)
Modified: 2/9/2024
HydroStor HS180 – Cross Section Low Groundwater- D-7-200C
(PDF)
Modified: 2/9/2024
HydroStor® Header Configurations – D-7-100
(PDF)
Modified: 3/5/2024
HydroStor® Header Configurations – D-7-100
(DWG)
Modified: 3/5/2024
HydroStor® HS180 – Cross Section- D-7-200A
(PDF)
Modified: 2/9/2024
HydroStor® HS180 Cross Section D-7-200A
(DWG)
Modified: 2/9/2024
HydroStor® HS180 Cross Section Detention 7-200B
(PDF)
Modified: 11/20/2023
HydroStor® HS180 Cross Section Detention D-7-200B
(DWG)
Modified: 2/9/2024
HydroStor® HS180 Cross Section Low Groundwater D-7-200C
(DWG)
Modified: 2/9/2024
HydroStor® HS180 Data Sheet (Detention) D-7-210
(DWG)
Modified: 2/9/2024
HydroStor® HS180 Data Sheet (Detention) D-7-210
(PDF)
Modified: 2/9/2024
HydroStor® HS180 Data Sheet D-7-209
(PDF)
Modified: 2/9/2024
HydroStor® HS180 Data Sheet D-7-209
(DWG)
Modified: 2/9/2024
HydroStor® HS180 Inspection Port – D-7-203
(DWG)
Modified: 11/20/2023
HydroStor® HS180 Inspection Port – D-7-203
(PDF)
Modified: 11/20/2023
HydroStor® HS180 Perimeter Drain
(DWG)
Modified: 11/20/2023
HydroStor® HS180 Perimeter Drain
(PDF)
Modified: 11/20/2023
HydroStor® HS180 Sediment Row
(PDF)
Modified: 11/20/2023
HydroStor® HS180 Sediment Row
(DWG)
Modified: 11/20/2023
HydroStor® HS180 Sediment Row Wrapped (NJCAT)
(DWG)
Modified: 11/20/2023
HydroStor® HS180 Sediment Row Wrapped (NJCAT)
(PDF)
Modified: 11/20/2023
HydroStor® HS180 Vent Tube
(DWG)
Modified: 11/20/2023
HydroStor® HS180 Vent Tube
(PDF)
Modified: 11/20/2023
HydroStor® HS290 – Cross Section – D-7-500A
(DWG)
Modified: 2/9/2024
HydroStor® HS290 – Cross Section – D-7-500A
(PDF)
Modified: 2/9/2024
HydroStor® HS290 – Cross Section Detention – D-7-500B
(PDF)
Modified: 11/20/2023
HydroStor® HS290 – Cross Section Detention – D-7-500B
(DWG)
Modified: 11/20/2023
HydroStor® HS290 – Cross Section Low Groundwater – D-7-500C
(PDF)
Modified: 2/9/2024
HydroStor® HS290 – Cross Section Low Groundwater – D-7-500C
(DWG)
Modified: 2/9/2024
HydroStor® HS290 – Data Sheet – D-7-509
(PDF)
Modified: 2/9/2024
HydroStor® HS290 – Data Sheet – D-7-509
(DWG)
Modified: 2/9/2024
HydroStor® HS290 – Data Sheet Detention – D-7-510
(DWG)
Modified: 2/9/2024
HydroStor® HS290 – Data Sheet Detention – D-7-510
(PDF)
Modified: 2/9/2024
HydroStor® HS290 – Inspection Port – D-7-503
(PDF)
Modified: 11/20/2023
HydroStor® HS290 – Inspection Port – D-7-503
(DWG)
Modified: 11/20/2023
HydroStor® HS290 – Scour Protection – D-7-507
(PDF)
Modified: 2/9/2024
HydroStor® HS290 – Scour Protection – D-7-507
(DWG)
Modified: 2/9/2024
HydroStor® HS290 – Sediment Row – D-7-502
(DWG)
Modified: 11/20/2023
HydroStor® HS290 – Sediment Row – D-7-502
(PDF)
Modified: 11/20/2023
HydroStor® HS290 – Sediment Row – Wrapped (NJCAT) – D-7-505
(PDF)
Modified: 11/20/2023
HydroStor® HS290 – Underdrain – D-7-506
(PDF)
Modified: 11/20/2023
HydroStor® HS290 – Vent Tube – D-7-508
(PDF)
Modified: 11/20/2023
HydroStor® HS31 Underdrain D-7-406
(PDF)
Modified: 9/19/2024
HydroStor® HS31 Underdrain D-7-406
(DWG)
Modified: 9/19/2024
HydroStor® HS31 – Scour Protection – D-7-407
(PDF)
Modified: 9/19/2024
HydroStor® HS31 Cross Section D-7-400A
(PDF)
Modified: 4/10/2025
HydroStor® HS31 Cross Section D-7-400A
(DWG)
Modified: 4/10/2025
HydroStor® HS31 Cross Section Detention D-7-400B
(PDF)
Modified: 9/19/2024
HydroStor® HS31 Cross Section Detention D-7-400B
(DWG)
Modified: 9/19/2024
HydroStor® HS31 Cross Section Low Ground Water D-7-400C
(DWG)
Modified: 4/10/2025
HydroStor® HS31 Cross Section Low Ground Water D-7-400C
(PDF)
Modified: 4/10/2025
HydroStor® HS31 Data Sheet D-7-409
(DWG)
Modified: 4/15/2025
HydroStor® HS31 Data Sheet D-7-409
(PDF)
Modified: 4/10/2025
HydroStor® HS31 Data Sheet Detention D-7-410
(PDF)
Modified: 4/10/2025
HydroStor® HS31 Data Sheet Detention D-7-410
(DWG)
Modified: 4/15/2025
HydroStor® HS31 Inspection Port D-7-403
(DWG)
Modified: 11/20/2023
HydroStor® HS31 Inspection Port D-7-403
(PDF)
Modified: 11/20/2023
HydroStor® HS31 Scour Protection D-7-407
(DWG)
Modified: 2/9/2024
HydroStor® HS31 Sediment Row D-7-402
(DWG)
Modified: 9/19/2024
HydroStor® HS31 Sediment Row D-7-402
(PDF)
Modified: 9/19/2024
Hydrostor® HS31 Sediment Row Wrapped (NJCAT) D-7-405
(DWG)
Modified: 11/20/2023
Hydrostor® HS31 Sediment Row Wrapped (NJCAT) D-7-405
(PDF)
Modified: 11/20/2023
HydroStor® HS31 Vent tube D-7-408
(PDF)
Modified: 9/19/2024
HydroStor® HS31 Vent tube D-7-408
(DWG)
Modified: 9/19/2024
HydroStor® HS75 Underdrain D-7-306
(DWG)
Modified: 9/19/2024
HydroStor® HS75 Underdrain D-7-306
(PDF)
Modified: 9/19/2024
HydroStor® HS75 – Sediment Row – D-7-302
(DWG)
Modified: 9/19/2024
HydroStor® HS75 – Sediment Row – D-7-302
(PDF)
Modified: 9/19/2024
HydroStor® HS75 Cross Section D-7-300A
(DWG)
Modified: 9/20/2024
HydroStor® HS75 Cross Section D-7-300A
(PDF)
Modified: 9/20/2024
HydroStor® HS75 Cross Section Detention D-7-300B
(PDF)
Modified: 9/20/2024
HydroStor® HS75 Cross Section Detention D-7-300B
(DWG)
Modified: 9/20/2024
HydroStor® HS75 Cross Section Low Groundwater D-7-300C
(DWG)
Modified: 9/19/2024
HydroStor® HS75 Cross Section Low Groundwater D-7-300C
(PDF)
Modified: 9/19/2024
HydroStor® HS75 Data Sheet (Detention) – D-7-310
(PDF)
Modified: 9/20/2024
HydroStor® HS75 Data Sheet (Detention) – D-7-310
(DWG)
Modified: 9/20/2024
HydroStor® HS75 Data Sheet D-7-309
(PDF)
Modified: 9/19/2024
HydroStor® HS75 Data Sheet D-7-309
(DWG)
Modified: 9/19/2024
HydroStor® HS75 Inspection Port
(DWG)
Modified: 11/20/2023
HydroStor® HS75 Inspection Port – D-7-303
(PDF)
Modified: 11/20/2023
HydroStor® HS75 Perimeter Drain
(PDF)
Modified: 11/20/2023
HydroStor® HS75 Perimeter Drain
(DWG)
Modified: 11/20/2023
HydroStor® HS75 Scour Protection – D-7-307
(DWG)
Modified: 9/19/2024
HydroStor® HS75 Scour Protection – D-7-307
(PDF)
Modified: 9/19/2024
HydroStor® HS75 Sediment Row
(PDF)
Modified: 11/20/2023
HydroStor® HS75 Sediment Row
(DWG)
Modified: 11/20/2023
HydroStor® HS75 Sediment Row Wrapped (NJCAT)
(PDF)
Modified: 11/20/2023
HydroStor® HS75 Sediment Row Wrapped (NJCAT)
(DWG)
Modified: 11/20/2023
HydroStor® HS75 Vent Tube D-7-308
(DWG)
Modified: 9/19/2024
HydroStor® HS75 Vent Tube D-7-308
(PDF)
Modified: 9/19/2024
Catalogs
HydroStor® Stormwater Chamber Catalog
(PDF)
Modified: 4/15/2025
Stormwater Catalog
(PDF)
Modified: 4/10/2025
Engineering Guides
HydroStor® HS180 & HS290 Design Guide – TN-4-113
(PDF)
Modified: 3/5/2024
HydroStor® HS75 & HS31 Design Guide -TN-4-110
(PDF)
Modified: 4/10/2025
Prinsco Civil 3D Structures Catalog
(DWG)
Modified: 11/20/2023
Technical Notes
Gasket Installation Guide
(PDF)
Modified: 11/20/2023
HydroStor® Acceptable Backfill TN-4-107
(PDF)
Modified: 10/31/2024
HydroStor® HS31 Incremental Storage Volumes – TN-4-402
(PDF)
Modified: 4/10/2025
HydroStor® HS75 Incremental Storage Volumes – TN-4-302
(PDF)
Modified: 10/31/2024
HydroStor® HS180 Incremental Storage Volumes
(PDF)
Modified: 11/20/2023
HydroStor® HS290 – Product Specification – TN-4-501
(PDF)
Modified: 11/20/2023
HydroStor® HS31 Product Specification TN-4-401
(PDF)
Modified: 4/10/2025
HydroStor® HS75 Product Specification TN-4-301
(PDF)
Modified: 9/20/2024
HydroStor® Inspection and Maintenance Guide
(PDF)
Modified: 12/7/2023
Terms & Conditions
Terms and Conditions of Sale
(PDF)
Modified: 11/20/2023
Video
HydroStor® Stormwater Chamber Installation Guide
(Video)
Modified: 5/16/2024
