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Medium Pond Kits

Medium Backyard Pond Kits & DIY Koi Pond Kits 

Create a beautiful water garden centerpiece with our selection of Medium Backyard Pond Kits — designed for versatility, ease of installation, and lasting performance. At Underwater Warehouse, we carry a variety of thoughtfully assembled backyard pond kits and koi pond kits that give you everything you need to build a thriving outdoor aquatic space without the guesswork.

Our medium pond kits are ideal for homeowners who want a balanced solution: sizable enough for fish, aquatic plants, and water features, yet manageable for beginner and intermediate pond builders. Each kit typically includes matched components — like liners, pumps, skimmers, filters, tubing, and lighting — engineered to work together for reliable, long-lasting pond performance.

Whether you’re embarking on a DIY backyard pond kit project or planning a custom koi pond kit installation, these medium kits simplify planning and save time by bundling essential equipment in one package. With quality elements like energy-efficient pumps and effective filtration systems, your pond will stay clearer and healthier with less maintenance.

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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.

Our Partners

Lighting World WarehousePond WarehouseAll Alliance LightingThe Pond & Rock Shop