Waterway Valve - On/Off - 1" Turn - Single Port [Black] (600-4361) calvertengineering This style of extension is

This style of extension is especially useful in retrofit work

It also allows the spa to maintain its original design without introducing mismatched parts

or collapsed from age and repeated use

Filter cartridge for compatible C-9485 and PA85 spa and pool applications

Supports dependable control response in compatible systems

Waterway Valve - On/Off - 1" Turn - Single Port [Black] (600-4361) calvertengineering This style of extension isThe Waterway 600 4361 single port on and off valve is designed for compatible 1 inch turn applications and features a black finish. A complete valve like this is useful because it provides a dedicated control point while avoiding the need to rebuild the existing assembly from multiple smaller parts. The black finish gives the valve a more defined visual presence, which can work well in darker trim or equipment settings. Replacing the full valve with