GO-KIT 32 - Which of the two "Seal Plate" O-rings is the right?

The Go-Kit32  I ordered for my Pentair “WhisperFlo” WFDS-8/011523 contains two “Seal Plate O-Rings”, one denoted “G-413” and the other “G-478 (New)”.  They both seem the same, except one may be very slightly thicker?  Which is the correct one for my pump?  And how do I tell which is which?  They both come bundled together in the pack, with no way of identifying which one is which.

Hello Covkid - The G-413 (almond) is used with Whisperflo pumps manufactured before 2/1/08. The G-478 (black) has been used on Whisperflo pumps manufactured since 2/1/08.

Hi InyoRob,

Yes, thanks for the reply.  However, the problem is that both rings in the GOKIT32 are black.  There is no “almond” one.

However, I went out and bought an almond one for $12 from a local Pool store and the pump is now up and running. No funny noises and no leaks … so far.  Fingers crossed!

Thanks again for your input and assistance!

Covkid

Glad to hear everything worked out! Thanks again for shopping with Inyo.