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Water Matrix

Reservoir Cubes "Water Matrix" provide an efficient way to maximize water storage capacity in Pondless® Waterfall reservoirs, Rainwater Harvesting Systems, and permeable paver applications.
  • Reduce rock tonnage
  • Reservoir can be made smaller because of the increased water percentage due to less rock being used.
  • Increase reservoir water capacity from 40% with rock to 90%+ with Res Cubes
  • Installation time is reduced considerably.
  • Smaller reservior hole means less digging, less liner and less labor.
  • Over 3 times more water storage capacity than gravel
  • Holds approximately 7.4 gallons of water per cubic foot, compared to gravel, which holds approximately 2.2 gallons of water per cubic foot 

 

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Koi Pond Supplies & Water Garden Equipment

Underwater Warehouse is your ultimate destination for koi pond supplies and equipment. We offer everything you need to create, maintain, and enhance stunning water features and backyard water gardens. Whether you're a seasoned pond enthusiast or just starting, our wide selection of koi pond filters, pumps, liners, water treatments, and more ensures your water feature stays beautiful. Get all your pond essentials shipped conveniently throughout the United States.

Pond Supplies, Kits, & Lighting

Discover everything you need for your koi pond or water garden at Underwater Warehouse. Our collection features essential pond supplies, including convenient pond kits for new setups or upgrades. Illuminate your water features with our variety of pond lighting options, transforming your backyard into a stunning focal point.

Water Garden Supplies

Create a peaceful water garden oasis in your backyard with Underwater Warehouse. We offer a full array of water garden supplies, including external and submersible pumps, and essential water treatments. Our products help maintain a healthy, thriving natural ecosystem, ensuring your water feature stays beautiful all year long.

Water Features and Fountains

Elevate your backyard with our stunning selection of water features and fountains. Whether you're seeking a small, decorative fountain or a grander water feature to complement your koi pond or lake, we offer a wide variety of styles and sizes. Our beautiful and functional pieces help you create a serene and inviting outdoor oasis.

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