Freeze Protection Port Plug with O-Ring Seal

$4.35

Used to plug PVC thru-wall ports during freezing temperature. Allows Chofu heater to be drained to prevent water from freezing in the water jacket, while leaving water in tub. The procedure is reversed when the Chofu is fired up again.

Additional information

Weight 1.0 lbs
Dimensions 4 × 4 × 4 in