4001 Aprilaire Saddle Valve.Features. For use with Aprilaire models 110 112 220 224 330 350 360 400 440 445 445A 448 500 550 550A 558 560 560A 568 600 600A 600M 700 700A 700M 760 760A 768 800 1120 1130 and 1140.. Fits 38 in. O.D. to 78 in. O.D. copper tubing with 14 in. O.D. compression outlet.. Includes brass needle valve steel saddle clamp nuts sleeves and inserts for poly or copper tubing.. Do not install on PVC or PEX water line.. Attaches to the water line in your home and supplies water to the Aprilaire Humidifier.. Designed to either be open or closed and is not designed to regulate the flow of the water.
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