Help to identify Pentair check valve

[Mainline]

I have one check valve which is used to keep the spa water from syphoning into the pool at the end of the day. I am not sure if the valve is part number 263042Z or 270119Z. Anyone have a guess? Thanks

 

[1poolman1]

I have one check valve which is used to keep the spa water from syphoning into the pool at the end of the day. I am not sure if the valve is part number 263042Z or 270119Z. Anyone have a guess? ThanksView attachment 555887

Picture matches 270119Z.

 

[Mainline]

270119Z

Thanks but I need to ask. The PVC plumbing I have is all 2" and it appears the 270119Z is for 2.5"-3"
Am I correct in my assumption?

 

[1poolman1]

Thanks but I need to ask. The PVC plumbing I have is all 2" and it appears the 270119Z is for 2.5"-3"
Am I correct in my assumption?

Looking closer, it appears to be the 263042Z. The assembly for the 2.5"-3" (270119Z) has 12 screw holes, yours has 8. Its the actual flap that looks the same.

 

[Mainline]

1poolman1
Thanks for the help. I will go ahead and order a replacement