Fiber internet hand off

I recently had new fiber internet service turned up at one of my remote sites. It’s a fiber hand off. The ISP told me to plug in the fiber into my router/firewall whenever I am ready. They sent me a picture of the SFP that I will be connected to on their switch. All that I can get from the label is that it’s a 1.25gb 20km DDM 1310nm LC SFP.
I’m not sure what to match this SFP with on my end. I’ve asked for compatibility list of SFPs, but got no answer. My end will plug into a Palo Alto 820, but I’m not sure if a PAN-SFP-LX will match with theirs.