The Flo Control KC-2000T 1/2 lb Check Valve [2" FPT x 7-1/2" Spng] is designed to help manage one-way water or ozone flow in compatible pool, spa, bath, or water treatment plumbing systems. A properly selected check valve can help reduce backflow, protect equipment, and maintain more consistent line direction in applications such as chemical feed, ozone injection, equipment bypass, or general circulation plumbing. The listed specifications include 2" FPT x 7-1/2" Spng, which are useful details to compare against the existing component before ordering. Manufacturer part number 1001-20 should be matched carefully against the label, parts diagram, or prior invoice for the equipment being serviced.Connection size, spring rating, valve body style, and fluid application should be compared carefully before ordering. This part is intended for repairs where the existing check valve is leaking, stuck, cracked, or no longer preventing reverse flow. Matching the exact plumbing layout and pressure requirements helps support a reliable repair and reduces the chance of needing adapters or rework during installation. Designed for compatible Flo Control applications or systems where the listed part details match the existing component Use part number 1001-20 to verify compatibility against equipment labels, exploded diagrams, or service records Helps complete plumbing repairs, replacements, extensions, or equipment connections Confirm size, thread type, slip or spigot style, and connection orientation before installation Useful for service work on circulation, suction, return, drain, or equipment plumbing