The Waterway 660-3577 Gray 1" Top-Access Air Control Notched is one of the most solid designs for managing air pressure to your hot tub's water jets. This Waterway control valve is compatible with most 1" threads, commonly present in popular hot tub air control solutions. In addition, it’s made in the USA, so you can trust that you’re getting a quality product.
This air control valve's operation is simple: simply screw it open or closed to control the amount of air your hot tub air control system receives. When fully closed, your standard pump will cause water to enter the tub at the regular rate. The more air you let into this valve, the more air pressure you add to the water's movement, gaining extra pressure with the simple suction action of your air control system.
• Plumbing Size - 1"
• Hole Size - 1-5/8"
• Face Diameter - 2-3/4"
• Face Style - Notched
• Color - Gray
• Manufacturer - Waterway
• Air Control Air Draw - Bottom
Alternate Part Numbers: 429288 , 6603577 , 806105115942 , 9400-077, 54-270-2026, 4-25-0104, 660-3577B (Waterway), 10597 (Dynasty), 10597