150PSI Modular Bulkhead Fitting. This adapter has a 2" QD (Quick Disconnect, FPT (female NPT) with an O-ring) that threads on to one of the module bulkhead fittings and the other side is a 2" MPT with o-ring for the sealing. Ie, you don't use teflon tape or pipe compound on this fitting. It makes a very easy and clean connection with the o-ring providing the sealing. You can use something like a female adapter 435-020 to adapt from this fitting to a piece of 2" flexible pvc or rigid pvc pipe.
