What outside unit matches this inside wall mounted unit?

There are three units that pair with this air handler: GLXS3BN2410, GLXS4BA2410, and GLZS4BA2410. The first two model numbers are ACs. The last one is a heat pump condenser. You can find our full assortment of condenser/wall-mount air handler systems in our Multi-Tenant Systems category (https://hvacdirect.com/heating/multi-tenant-systems.html).

If you have any further questions, please call us and we will be happy to assist you.