When I was moving my tub I accidentally broke off the pump drain on my Landmark. I didn't think it would be a big deal to fix but when I removed some of the insulation I can see a couple of small lines hooking in to it. Do I need to buy this 4 way union or can I just add a new nipple on the end of it? Any help on the best way to tackle this would be great.

It's a suction line so it's not hyper critical.

Just be sure they don't leak and use good primer and heavy bodied cement.