Pentair Landi Gas Valve Heater (R2010100) grasslin A valve like this is

A valve like this is useful because it gives the line a dependable isolation point while the 3-piece construction improves the practicality of future service compared with more basic valve bodies

When a swivel becomes worn

Waterway 2-port dead-end manifold

The Waterway Filter Lid [T/L w/Plug & O-Rings] is a practical replacement sealing component for pool

That keeps the job focused while still producing a more complete result

Pentair Landi Gas Valve Heater (R2010100) grasslin A valve like this isThis Pentair service part is intended for situations where accurate fitment and dependable function matter. This item is a gas valve heater component used in compatible Landi heater service and repair work. Use it when the original part is worn, damaged, missing, or no longer helping the system perform as intended. Designed for compatible heater service, this part supports safe, reliable operation when a worn or failed component is affecting ignition,