The A1A4-7T delivers precise, maintenance-light chemical dosing for commercial aquatic facilities without the vapor lock or valve clogging common in traditional diaphragm systems. This Blue-White Industries FLEXFLO® A1A peristaltic metering pump adjusts its output between 0.01 and 100 gallons per day using a brushless DC motor, making it capable of steady-state sanitation and peak-demand cycling across pools, spas, and water parks. Operating on standard 115VAC power with an integrated NEMA 5-15 plug removes the need for conduit or hardwiring while supporting continuous-duty rotation. The valve-free peristaltic action self-primes against backpressure up to 40 PSI, safely transferring sodium hypochlorite and compatible acids at temperatures up to 185°F through supplied 3/8" OD Flex-A-Prene® 7T tubing. Patented Tube Failure Detection continuously monitors the rotor tube for cracks or leakage, protecting surrounding equipment and reducing unscheduled downtime. A waterproof digital control interface allows precise gallon-per-day adjustment and includes a physical lockout to prevent accidental calibration shifts. Housed in an NEMA 4X/IP66 enclosure weighing approximately 6 pounds, the 7.25 by 9 by 10-inch unit mounts in wet environments with standard suction limits of 30 feet. Keep inlet lines short, verify wetted-part compatibility with your specific disinfectant, and secure factory settings when installing under Blue-White’s two-year warranty guidelines.