CLAMSHELL™ is a custom-fabricated, watertight enclosure system that provides flood protection directly to, and around any type of equipment, utility pad, generator station, pool equipment pressure-pumps and more.
Durable, water-resistant composite flood panels anchor to the equipment pad and lock together at the corners using an industrial latch-lock connector, compressing seals between panels and against the slabs to create a continuous, sealed perimeter protection enclosure.
Constructed from the same fiberglass-reinforced honeycomb composite panels used in our YellowFIN™ flood panel system, with 6063-T6 aluminum framing, compression seals, and 316L marine-grade stainless steel hardware, CLAMSHELL™ rapidly assembles into a sealed enclosure engineered to withstand hydrostatic loads, flowing water, and storm-related debris.

How CLAMSHELL Works:
Seals on four sides. Anchored to the pad.
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Survey & Measure
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Custom Fabrication
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Anchor & Seal

Why Protect Equipment from Flooding with CLAMSHELL?


Flood Panel and Aluminum Frame Enclosure Engineering
Each CLAMSHELL panel is a fiberglass-reinforced, multi-layer composite with a honeycomb core, framed in aluminum extrusion. The frame reinforces every edge, spreading hydrostatic load evenly and preventing the panel from bowing under pressure.
*Confirm that your equipment pad and site can withstand the hydrostatic pressure of the design flood. Consult a local Professional Engineer for more information.
Keep Floodwater Away From Equipment
Standby & Backup Generators
Flood protection for generators used by residential, commercial and hospital facilities; transfer switch coverage on the same pad.
Electrical Panels & Meter Stations
Ground-level utility boxes, service panels, meter banks and electrical control cabinets.
HVAC Condensers & Heat Pumps
Protect AC condenser units, heat pumps, mini split outdoor panels and packages HVAC from floodwaters and debris.
Pool, Pumps & Spa Equipment
Pool pumps, heaters, filters, plumbing units and controls at homes, condominiums and resorts.
Transformers & Switchgear
Pad-mounted transformers, switchgear and electrical distribution equipment at substations and commercial sites.
EV Charging Stations & Battery
Ground-mounted EV charging equipment, battery storage cabinets and solar inverters.
Utility Pumps & Lift Stations
Water and sewer pump controls, booster pumps and lift station equipment required to be running during a flood.
Data Cabinets & Telecom Units
Outdoor telecom enclosures, data centers, fiber optic cabinets and network equipment.
Panel and Frame Extrusion Composition
- Panel Material: Fiberglass Reinforced Composite Panel with honeycomb core.
- Frame Material: 6063-T6 Anodized Aluminum.
- Seals: HDPE gasket seals to wall and ground.
- Panel Thickness: 2” + seals.
- Standard Colors: Light Grey and White, custom colors and graphic printing available.
- Hardware: 316L Marine-Grade Stainless Steel hardware, industrial stainless latch-lock system, plastic turn knobs with stainless threaded insert.
About Shipping:
Shipping for Garrison Flood products is customized based on the product and delivery location and is not included in the listed price. Purchase your product now to receive a separate shipping quote afterward, or contact Home Power Tech before ordering at support@homepowertech.com or call/text 727-334-0176. We’ll confirm the shipping cost with you before arranging shipment.