






CULTEC Recharger® 330XLHD Dry Well Standalone Unit
The Recharger® 330XLHD is a high-capacity, heavy-duty dry well chamber designed for residential stormwater management. Its large storage volume and compact footprint make it ideal for managing runoff from roofs, driveways, and other impervious surfaces.
CULTEC’s chambers may be used in residential applications to control rainwater collected from gutters and/or catch basins. The chambers collect and store the stormwater underground until the soil is able to accept it back into the ground. Puddles and saturated soil are eliminated as water is diverted into the chamber and recharged into the ground. CULTEC chambers are lightweight and easily transported by hand making them ideal to install in tight areas or where minimal site disturbance is desired.
CULTEC Plastic Chambers
- Control rainwater from gutters, patio, driveway, and other impervious surfaces
- Eliminate flooded basements and yards
- Contain water from a sump pump, washer machine, pool backwash, or water softener discharge
System Benefits
- Large storage capacity in small footprint
- Fully-formed unit containing no separate parts*
- Lightweight
- Can be carried by one or two people
- Keeps properties dry and usable by storing water underground, naturally recharging groundwater
- Easily transported by pick-up truck
- Corrugated arch design for structural integrity
- Quick and easy installation
- Minimal site disturbance
- Optional water quality unit to capture leaves and debris, ensuring the proper operation of the underground storage system

Commercial Application Downloads | These are for existing designs only. For reference only.
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FAQs
Need help determining rainfall amounts for your area? Visit NOAA’s National Weather Service Precipitation Frequency Data Server (PFDS)
Residential Drainage Calculator
Need help determining rainfall amounts for your area? Visit NOAA’s National Weather Service Precipitation Frequency Data Server (PFDS)
Residential Drainage Calculator
Current version is: 08/20/24
MS-Excel spreadsheet that calculates out the number of chambers required based on the impervious area and rainfall event parameters.
DOWNLOAD
Product Details
📐 Key Specifications
Model Number: 330XLHD
Dimensions:
Length: 8.5 ft (2.59 m)
Installed Length: 7.0 ft (2.13 m)
Width: 52 in (1321 mm)
Height: 30.5 in (775 mm)
Storage Capacity:
Per Unit: 52.21 ft³ (1.48 m³)
Per Foot: 7.459 ft³/ft (0.693 m³/m)
Maximum Allowable Cover: 12 ft (3.66 m)
Inlet Opening (End Wall): Up to 24 in (600 mm)
Side Portal Max O.D.: 11.75 in (298 mm)
Material: High-density polyethylene (HDPE)
Color: Blue exterior, black interior
Structural Features:
16 corrugations
56 discharge holes for lateral water conveyance
Raised integral cap for optional inspection port
Horizontal stiffening flex reduction steps between ribs
Installation Notes:
Interlocking overlapping rib connections
No separate couplings or end plates required
Compatible with CULTEC HVLV® FC-24 Feed Connectors
🚚 Shipping & Handling
Packaging: Sold in full pallets only
Pallet Quantity: 30 units per pallet
Weight: Approximately 60 lbs (27.2 kg) per unit
Shipping Options: Delivery available; shipping times and availability may vary by location
Note: Materials are not returnable; ensure accurate estimation before ordering
Length | 8.50 ft2.59 m |
Width | 52 in1321 mm |
Height | 30.50 in775 mm |
Installed Length | 7.00 ft2.13 m |
Length Adjustment per Run | 1.50 ft0.46 m |
Chamber Storage | 7.459 ft³/ft52.21 ft³/unit391 gal0.69 m³/m1.48 m³/unit1478.44 L |
Max. Allowable Cover | 3.66 m12 ft |
Max. Inlet Opening in End Wall | 24 in600 mm |
Max. Allowable O.D. in Side Portal | 11.75 in298 mm |
Compatible Feed Connector | HVLV FC-24 Feed Connector |
Click to view
Our tried-and-true Recharger 330XLHD chamber will remain for residential stormwater applications, as its integral endwalls make this chamber the most convenient choice for smaller residential designs.