The Multi Products 2654C is a non-spring return actuator

Key Benefits for Technicians: Precision Interfacing: Seamlessly converts 1-3/8" stub tube lines to 1-3/4"-12 Rotalock connections without compromising flow

it is the direct replacement

this is a mechanical adapter kit for the valve internals and plate

and VCS-VCSS series

Watts 0792012 Breaker 321142-301 The Multi Products 2654C isThe Watts 0792012 (Model 1" LF800M4 QT) is a contractor grade lead free pressure vacuum breaker engineered for high hazard continuous pressure applications. Designed specifically for irrigation systems and industrial process water lines, this backflow preventer features a lead free cast copper silicon alloy body to ensure compliance with potable water regulations. The Watts LF800M4 QT utilizes a unique acetal bonnet that doubles as a freeze plug,