These heavy-duty commercial-grade reservoirs will last for years! They are made with a high-quality, FDA-approved, UV-protected, impact-resistant poly to ensure uniform thickness and strength for maximum durability and longevity. One-piece construction with rounded edges eliminates cracking and splitting. The 100 gallon reservoir comes with a molded-in leakproof 1-1/4 in FNPT aluminum drain insert, ensuring your drain will never rust, sun rot, leak or fail. Made in the USA.